Signing RGB PSBTs

[cryptoquick]

Describe the bug

It's not yet clear if the RGB descriptor wallet will be capable of being compiled to WASM anytime soon, so, I was hoping we could use BDK to sign PSBTs from an RGB transaction... But I'm getting the following error:

 DEBUG bitmask_core::operations::bitcoin::sign_psbt  > Signing PSBT...
 DEBUG bdk::wallet                                   > Found descriptor External/0
 DEBUG bdk::wallet                                   > Input #0 - 0a67cd6b1df62f5b74d470763eadfd520f6a9264e2fb0339db9e1092374d3ae5:3, using `create_height` = Some(2343448), `current_height` = Some(2344194)
 DEBUG bdk::wallet                                   > satisfy error CouldNotSatisfy for input 0

Does BDK need to be able to make sense of the PSBT before it signs it?

To Reproduce

Clone bitmask-core: https://github.com/diba-io/bitmask-core.git
Checkout the code in this commit: 536c795b69015cb8fee322498873e248753d75a1

Create a testnet wallet with some testnet sats in it, and (optionally) run a local esplora node synced to testnet:

Run: TEST_WALLET_SEED="meow meow meow (replace this with a real seed)" BITCOIN_EXPLORER_API_TESTNET=http://127.0.0.1:3000 BITCOIN_ELECTRUM_API_TESTNET=127.0.0.1:60001 RUST_LOG="debug" cargo test

The PSBT will be printed in two formats, one in base64 that can be used with bitcoin-cli decodepsbt, and another in hex that can be piped through xxd and used with rgb psbt analyze

bitcoin-cli -testnet decodepsbt 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 | jq

My output:

{
  "tx": {
    "txid": "4991eb293a7eadaf8bd90443debda8191da1d04d9d2b5ed586b1fde483c3668f",
    "hash": "4991eb293a7eadaf8bd90443debda8191da1d04d9d2b5ed586b1fde483c3668f",
    "version": 2,
    "size": 125,
    "vsize": 125,
    "weight": 500,
    "locktime": 0,
    "vin": [
      {
        "txid": "0a67cd6b1df62f5b74d470763eadfd520f6a9264e2fb0339db9e1092374d3ae5",
        "vout": 3,
        "scriptSig": {
          "asm": "",
          "hex": ""
        },
        "sequence": 4294967295
      }
    ],
    "vout": [
      {
        "value": 1.13e-06,
        "n": 0,
        "scriptPubKey": {
          "asm": "OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RESERVED OP_RETURN 180245be6aa0c58a7e3a88b946096fa7a1d8e3f1cc4c41c16311b6f74f763f7700",
          "desc": "raw(5050505050505050505050505050505050505050505050505050505050506a21180245be6aa0c58a7e3a88b946096fa7a1d8e3f1cc4c41c16311b6f74f763f7700)#gu29za73",
          "hex": "5050505050505050505050505050505050505050505050505050505050506a21180245be6aa0c58a7e3a88b946096fa7a1d8e3f1cc4c41c16311b6f74f763f7700",
          "type": "nonstandard"
        }
      }
    ]
  },
  "global_xpubs": [
    {
      "xpub": "tpubDChP3vEGR7L8niRPATwpHAwGrjV77L8UZBbvUz6gXEUjaWNJMaVUmBWWNk2rj3Y3kQk5R8Rhbcca43bet7yqPdfdRnVKd5Y3ijwhMyK2Wf9",
      "master_fingerprint": "8153ed60",
      "path": "m/168'/20'/0'"
    }
  ],
  "psbt_version": 0,
  "proprietary": [
    {
      "identifier": "524742",
      "subtype": 0,
      "key": "fc03524742008d36f19ccdb74f4f5e4b45aad0bdfb4393a2d4d6617fb8e63250e577b24e1fac",
      "value": "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"
    },
    {
      "identifier": "524742",
      "subtype": 1,
      "key": "fc035247420194cde7e515a67d7e4783a84ebbc14d5a8bfb591446d93217387d2177646a46f8",
      "value": "0000000001008d36f19ccdb74f4f5e4b45aad0bdfb4393a2d4d6617fb8e63250e577b24e1fac0100a100010000000100a100010200010101e53a4d3792109edb3903fbe264926a0f52fdad3e7670d4745b2ff61d6bcd670a040000007438c6e5005b13f084030000000000004b0fa77ebba40ef0fb3dabfaa730cf0207431f8e529b2d9f65165eea339dd9830207ee5937e63b656684dc0ac5ca2d83b380f46da1f677467961534ac3706323b96400000000000000b4f05881445bf10f04c2540558cf30fcb36bbd585cad729c5abbffa29c9867bf00000000"
    }
  ],
  "unknown": {},
  "inputs": [
    {
      "non_witness_utxo": {
        "txid": "0a67cd6b1df62f5b74d470763eadfd520f6a9264e2fb0339db9e1092374d3ae5",
        "hash": "0a67cd6b1df62f5b74d470763eadfd520f6a9264e2fb0339db9e1092374d3ae5",
        "version": 1,
        "size": 266,
        "vsize": 266,
        "weight": 1064,
        "locktime": 2343446,
        "vin": [
          {
            "txid": "d2298d45f996343199e21d931015cb4d50ba75d1e991ffccb0800b1bfbe4ac82",
            "vout": 0,
            "scriptSig": {
              "asm": "",
              "hex": ""
            },
            "sequence": 4294967293
          }
        ],
        "vout": [
          {
            "value": 6.13e-06,
            "n": 0,
            "scriptPubKey": {
              "asm": "1 2ecd9e447575af3162f45907a28479ba29b40ba9ce0c314b92aef675426d392a",
              "desc": "addr(tb1p9mxeu3r4wkhnzch5tyr69prehg5mgzafecxrzjuj4mm82snd8y4qx8a0zg)#wkdgqdp2",
              "hex": "51202ecd9e447575af3162f45907a28479ba29b40ba9ce0c314b92aef675426d392a",
              "address": "tb1p9mxeu3r4wkhnzch5tyr69prehg5mgzafecxrzjuj4mm82snd8y4qx8a0zg",
              "type": "witness_v1_taproot"
            }
          },
          {
            "value": 0.00097265,
            "n": 1,
            "scriptPubKey": {
              "asm": "1 b7be9743d44dd223724ce8dd44877c8f62efe5fe216f69b7e91c637ccb4281d0",
              "desc": "addr(tb1pk7lfws75fhfzxujvarw5fpmu3a3wle07y9hkndlfr33hej6zs8gqfl4lmj)#tcwzmxl9",
              "hex": "5120b7be9743d44dd223724ce8dd44877c8f62efe5fe216f69b7e91c637ccb4281d0",
              "address": "tb1pk7lfws75fhfzxujvarw5fpmu3a3wle07y9hkndlfr33hej6zs8gqfl4lmj",
              "type": "witness_v1_taproot"
            }
          },
          {
            "value": 6.13e-06,
            "n": 2,
            "scriptPubKey": {
              "asm": "1 2ecd9e447575af3162f45907a28479ba29b40ba9ce0c314b92aef675426d392a",
              "desc": "addr(tb1p9mxeu3r4wkhnzch5tyr69prehg5mgzafecxrzjuj4mm82snd8y4qx8a0zg)#wkdgqdp2",
              "hex": "51202ecd9e447575af3162f45907a28479ba29b40ba9ce0c314b92aef675426d392a",
              "address": "tb1p9mxeu3r4wkhnzch5tyr69prehg5mgzafecxrzjuj4mm82snd8y4qx8a0zg",
              "type": "witness_v1_taproot"
            }
          },
          {
            "value": 6.13e-06,
            "n": 3,
            "scriptPubKey": {
              "asm": "1 8b3a72c11d96437d779c214b0750e699f35255af0f7409226f0e73a58f78f409",
              "desc": "addr(tb1p3va89sgajeph6auuy99sw58xn8e4y4d0pa6qjgn0pee6trmc7sysdtf2yr)#apkj3l2r",
              "hex": "51208b3a72c11d96437d779c214b0750e699f35255af0f7409226f0e73a58f78f409",
              "address": "tb1p3va89sgajeph6auuy99sw58xn8e4y4d0pa6qjgn0pee6trmc7sysdtf2yr",
              "type": "witness_v1_taproot"
            }
          },
          {
            "value": 6.13e-06,
            "n": 4,
            "scriptPubKey": {
              "asm": "1 8b3a72c11d96437d779c214b0750e699f35255af0f7409226f0e73a58f78f409",
              "desc": "addr(tb1p3va89sgajeph6auuy99sw58xn8e4y4d0pa6qjgn0pee6trmc7sysdtf2yr)#apkj3l2r",
              "hex": "51208b3a72c11d96437d779c214b0750e699f35255af0f7409226f0e73a58f78f409",
              "address": "tb1p3va89sgajeph6auuy99sw58xn8e4y4d0pa6qjgn0pee6trmc7sysdtf2yr",
              "type": "witness_v1_taproot"
            }
          }
        ]
      },
      "sighash": "ALL",
      "proprietary": [
        {
          "identifier": "524742",
          "subtype": 3,
          "key": "fc03524742038d36f19ccdb74f4f5e4b45aad0bdfb4393a2d4d6617fb8e63250e577b24e1fac",
          "value": "94cde7e515a67d7e4783a84ebbc14d5a8bfb591446d93217387d2177646a46f8"
        }
      ],
      "unknown": {
        "169dcfa33f4848d5b9e34af4e9dc4e7a596d31d25fbc042651c4494071f2e276d3": "008153ed60a800008014000080000000800000000000000000",
        "17": "9dcfa33f4848d5b9e34af4e9dc4e7a596d31d25fbc042651c4494071f2e276d3"
      }
    }
  ],
  "outputs": [
    {
      "bip32_derivs": [
        {
          "pubkey": "035285a5667d2556d8047d246adab835557b4b1f5f7518a6e02f002ca69fde8f0d",
          "master_fingerprint": "8153ed60",
          "path": "m/168'/20'/0'/1/0"
        }
      ],
      "proprietary": [
        {
          "identifier": "4c4e50425034",
          "subtype": 0,
          "key": "fc064c4e50425034008d36f19ccdb74f4f5e4b45aad0bdfb4393a2d4d6617fb8e63250e577b24e1fac",
          "value": "198c7292bbe0b02fb671c8a02571213a34aed916ba49566e0f61c1b670c5d404"
        },
        {
          "identifier": "4c4e50425034",
          "subtype": 1,
          "key": "fc064c4e5042503401",
          "value": "ac0c9aa426d1e8be"
        },
        {
          "identifier": "544150524554",
          "subtype": 0,
          "key": "fc0654415052455400",
          "value": "010001"
        },
        {
          "identifier": "544150524554",
          "subtype": 1,
          "key": "fc0654415052455401",
          "value": "180245be6aa0c58a7e3a88b946096fa7a1d8e3f1cc4c41c16311b6f74f763f77"
        },
        {
          "identifier": "544150524554",
          "subtype": 2,
          "key": "fc0654415052455402",
          "value": "00005285a5667d2556d8047d246adab835557b4b1f5f7518a6e02f002ca69fde8f0d"
        }
      ],
      "unknown": {
        "05": "5285a5667d2556d8047d246adab835557b4b1f5f7518a6e02f002ca69fde8f0d"
      }
    }
  ],
  "fee": 5e-06
}

The rgb command can be installed using cargo install --force --all-features rgb-std --version "0.8.0"

echo '70736274ff01007d0200000001e53a4d3792109edb3903fbe264926a0f52fdad3e7670d4745b2ff61d6bcd670a0300000000ffffffff017100000000000000415050505050505050505050505050505050505050505050505050505050506a21 80245be6aa0c58a7e3a88b946096fa7a1d8e3f1cc4c41c16311b6f74f763f7700000000004f01043587cf035b7102e180000000d45b541ee8cbf53a6642e5cdab5f58e4cbc8942ac36f94e581abb204b6e440bd038039f3775927d26eb54068c65d6a2d52a1d01e365f8 654ed181a6e6f7921c80108153ed60a8000080140000800000008026fc03524742008d36f19ccdb74f4f5e4b45aad0bdfb4393a2d4d6617fb8e63250e577b24e1facfd6e0300000000000000000000000000000000000000000000000000000000000000000000000200 8004f7574506f696e740200010004005478696400000001000400547869640100001020000000080000000011fe01000011fe03000000000400000013a000000003b000000003b100010008004f7574506f696e74b2000011000500010003a0000100a1000100aa0000a 000000000500000001000100010001000100030001000100040001000100a000010001000400010000000100a0000000ffffa1000000ffffaa0000000100000000000700000000000100a1000100ffff0100a1000000ffff000010100300000000000100010000000100 30000000100010001000100010001000100000001000000a0100100a000010001000100a0000100ffff0300a0000000ffffa1000000ffffaa00000001000000a11000000100aa00010001000200aa0000000100ab00000001000000a2100400b00001000100b1000100f ffb2000000ffffb300010001000100ab00010001000100ab00000001000000a3100500a00001000100b00001000100b1000100ffffb2000000ffffb300010001000100ab00010001000200a1000100ffffab00000001000000008000000500010000000100a0000000ff fa1000000ffffaa0000000100ab000000ffff0500010000000100a0000000ffffa1000000ffffaa0000000100ab000000ffff00000002003d831aae939d05cadc5a47be093650b38fdea4f5ce1b358d636b050f22711cc50100990043497fd7f826957108f4a30fd9cec aeba79972084e90ead01ea3309000000000700746573746e65740b110907040074657374020074629d479c4701000000ec011c000022020000000000000400744254430c005465737420426974636f696e0c0054657374207361746f73686900e1f5050000000043497f 7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000000101050000000100ee04005445535401000100ee0a0054657374206173736574030001000003040001001314ab096300000000a000010003e8030000000000000100a100010100010101e53a4 3792109edb3903fbe264926a0f52fdad3e7670d4745b2ff61d6bcd670a03000000e5b24abc7e32f44fe8030000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000026fc035247420194cde7e5 5a67d7e4783a84ebbc14d5a8bfb591446d93217387d2177646a46f8d90000000001008d36f19ccdb74f4f5e4b45aad0bdfb4393a2d4d6617fb8e63250e577b24e1fac0100a100010000000100a100010200010101e53a4d3792109edb3903fbe264926a0f52fdad3e767 d4745b2ff61d6bcd670a040000007438c6e5005b13f084030000000000004b0fa77ebba40ef0fb3dabfaa730cf0207431f8e529b2d9f65165eea339dd9830207ee5937e63b656684dc0ac5ca2d83b380f46da1f677467961534ac3706323b96400000000000000b4f058 1445bf10f04c2540558cf30fcb36bbd585cad729c5abbffa29c9867bf00000000000100fd0a01010000000182ace4fb1b0b80b0ccff91e9d175ba504dcb1510931de299313496f9458d29d20000000000fdffffff0565020000000000002251202ecd9e447575af3162f 5907a28479ba29b40ba9ce0c314b92aef675426d392af17b010000000000225120b7be9743d44dd223724ce8dd44877c8f62efe5fe216f69b7e91c637ccb4281d065020000000000002251202ecd9e447575af3162f45907a28479ba29b40ba9ce0c314b92aef675426d 92a65020000000000002251208b3a72c11d96437d779c214b0750e699f35255af0f7409226f0e73a58f78f40965020000000000002251208b3a72c11d96437d779c214b0750e699f35255af0f7409226f0e73a58f78f40916c223000103040100000021169dcfa33f484 d5b9e34af4e9dc4e7a596d31d25fbc042651c4494071f2e276d319008153ed60a8000080140000800000008000000000000000000117209dcfa33f4848d5b9e34af4e9dc4e7a596d31d25fbc042651c4494071f2e276d326fc03524742038d36f19ccdb74f4f5e4b45aa 0bdfb4393a2d4d6617fb8e63250e577b24e1fac2094cde7e515a67d7e4783a84ebbc14d5a8bfb591446d93217387d2177646a46f8002202035285a5667d2556d8047d246adab835557b4b1f5f7518a6e02f002ca69fde8f0d188153ed60a800008014000080000000800 000000000000000105205285a5667d2556d8047d246adab835557b4b1f5f7518a6e02f002ca69fde8f0d29fc064c4e50425034008d36f19ccdb74f4f5e4b45aad0bdfb4393a2d4d6617fb8e63250e577b24e1fac20198c7292bbe0b02fb671c8a02571213a34aed916ba 9566e0f61c1b670c5d40409fc064c4e504250340108ac0c9aa426d1e8be09fc06544150524554000301000109fc065441505245540120180245be6aa0c58a7e3a88b946096fa7a1d8e3f1cc4c41c16311b6f74f763f7709fc06544150524554022200005285a5667d255 d8047d246adab835557b4b1f5f7518a6e02f002ca69fde8f0d00' | xxd -r -p > demo.psbt

Then run: rgb psbt analyze demo.psbt

My output:

contracts:
- contract_id: rgb135m0r8xdka857hjtgk4dp00mgwf694xkv9lm3e3j2rjh0vjwr7kqyg593p
  - source: rgbc1qxz4ynegq3g33l77hjv7cg3mutjy7mgw469pp3vpk3gj9aky3x6mr9ple53ju29w2gjzndytjwy4sd7fg5hg4yujfpgs4jgf9ycaaa77e34xk677xjll003lhlhhhu7dplwfwqs7dqvktt2rj9q6vqqpzkpw8yg7recgupzq7aeahq7emxlsfq0zt8jk7n55q0w58k883nl4yuv7qcd805fgsuv8ldcpfjjxng4k7dggr2kqdr3qesszkzkf3srdu8qe2fjs266zehp3e6h6s5emytvnf2vtuvzc36jwr7u4k9jdmy56dqacx0nzjg9a5cwah5z4mqfezl23yyhfspmk25emrjlvf4wmxwa6wy20h2cuyexgxxrpaf5e3chvzcthlwrxyehhwu2d8wa76zqu0v445rlxa7mruthje0n5yqu64a52fcy5cq9dgd6wt4732tud0r0rwlwhzunmhpcne0ldneavrhe99e54sdnkrqcdsev5dd3hf52cvq4v0vkmqxkqrw7fyq5qyfzk4z58awp0txgsu3ylawsgpdc5tkyk68zcdr97prw8lgqwtjasyg2j9ah4erqda4q3e56mhgkd2egcvxr05qv2ntyujddayxjwpv8fjw2gx4q2vuglykxatju6pt7l2ng7lpu7s4l9lk70fmka3up9avk0jtqu8rh5637zvw7wj69j7j7u2cdm9jfxelspuw3hlp
  - transitions:
  - used in:
    - input: 0
      node_id: f8466a6477217d381732d9461459fb8b5a4dc1bb4ea883477e7da615e5e7cd94
bundles:
- contract_id: rgb135m0r8xdka857hjtgk4dp00mgwf694xkv9lm3e3j2rjh0vjwr7kqyg593p
  bundle_id: 04d4c570b6c1610f6e5649ba16d9ae343a217125a0c871b62fb0e0bb92728c19
    - revealed: # nodes
      - f8466a6477217d381732d9461459fb8b5a4dc1bb4ea883477e7da615e5e7cd94: 0000000001008d36f19ccdb74f4f5e4b45aad0bdfb4393a2d4d6617fb8e63250e577b24e1fac0100a100010000000100a100010200010101e53a4d3792109edb3903fbe264926a0f52fdad3e7670d4745b2ff61d6bcd670a040000007438c6e5005b13f084030000000000004b0fa77ebba40ef0fb3dabfaa730cf0207431f8e529b2d9f65165eea339dd9830207ee5937e63b656684dc0ac5ca2d83b380f46da1f677467961534ac3706323b96400000000000000b4f05881445bf10f04c2540558cf30fcb36bbd585cad729c5abbffa29c9867bf00000000
    - concealed: # nodes and inputs
proprietary: # all proprietary keys
- global:
  - RGB/0x00/8d36f19ccdb74f4f5e4b45aad0bdfb4393a2d4d6617fb8e63250e577b24e1fac: 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
  - RGB/0x01/94cde7e515a67d7e4783a84ebbc14d5a8bfb591446d93217387d2177646a46f8: 0000000001008d36f19ccdb74f4f5e4b45aad0bdfb4393a2d4d6617fb8e63250e577b24e1fac0100a100010000000100a100010200010101e53a4d3792109edb3903fbe264926a0f52fdad3e7670d4745b2ff61d6bcd670a040000007438c6e5005b13f084030000000000004b0fa77ebba40ef0fb3dabfaa730cf0207431f8e529b2d9f65165eea339dd9830207ee5937e63b656684dc0ac5ca2d83b380f46da1f677467961534ac3706323b96400000000000000b4f05881445bf10f04c2540558cf30fcb36bbd585cad729c5abbffa29c9867bf00000000
- inputs:
  - 0:
    - RGB/0x03/8d36f19ccdb74f4f5e4b45aad0bdfb4393a2d4d6617fb8e63250e577b24e1fac: 94cde7e515a67d7e4783a84ebbc14d5a8bfb591446d93217387d2177646a46f8
- outputs:
  - 0:
    - LNPBP4/0x00/8d36f19ccdb74f4f5e4b45aad0bdfb4393a2d4d6617fb8e63250e577b24e1fac: 198c7292bbe0b02fb671c8a02571213a34aed916ba49566e0f61c1b670c5d404
    - LNPBP4/0x01/: ac0c9aa426d1e8be
    - TAPRET/0x00/: 010001
    - TAPRET/0x01/: 180245be6aa0c58a7e3a88b946096fa7a1d8e3f1cc4c41c16311b6f74f763f77
    - TAPRET/0x02/: 00005285a5667d2556d8047d246adab835557b4b1f5f7518a6e02f002ca69fde8f0d

Expected behavior
BDK signs and sends the RGB PSBT to the esplora server.

Build environment

• BDK tag/commit: v0.21.0
• OS+version: Arch btw
• Rust/Cargo version: 1.63.0
• Rust/Cargo target: x86_64-unknown-linux-gnu

Additional context
RGB is a tokens protocol built directly on Bitcoin, and the PSBT is to create an anchor transaction on-chain that's used to prove the owner of the RGB20 asset being created in the test.

The test can be found here:
https://github.com/diba-io/bitmask-core/blob/536c795b69015cb8fee322498873e248753d75a1/tests/asset.rs

[cryptoquick]

Maybe the issue is on the RGB side of things... I took the PSBT on-disk and ran the following commands (as per the demo script instructions in this PR):

btc-hot sign ${PSBT} ${DIR}/testnet

Account password:
Signing with m=[e37b9ace]/86h/1h/0h=[tpubDDYxWZRUVJm3yZ3wvC1uCukK4n29hk6Vmdf3RRzS7A9YDyXFYMARtaK26XhhJhoNkm3HtAvyPac9z6iqrfkTfiA51ciMA641FzXnag6fAjx]/*/*

Done 0 signatures

(Normally it says Done 1 signatures, so this is not nominal behavior)

btc-cold finalize --publish testnet ${PSBT}

Error: can't finalize PSBT data due to following problem(s):
- Could not satisfy Tr descriptor at index 0

So, this might actually be due to my bastardization of rgb-node code.

Tagging some RGB folks in case anything pops out immediately... @dr-orlovsky @zoedberg @crisdut

Before somebody says it, I understand this is technically not really proper RGB node code either, since I basically just lifted it from the various RGB repos to get it working. I'm currently working on a side-project to get the storm node to work using an in-memory BTreeMap instead of a Sled database and communicate with all the other nodes using zmq inproc, so it can be embedded and commands called directly, but I was hoping I could get it working this way first.

It also might not be a BDK problem either. Anyway, I'll keep noodling around, feel free to close if this is deemed out of scope.

Here is the PSBT in zip form from xxd for convenience:
demo-psbt.zip

[cryptoquick]

Also, our BDK PSBT signing code is here, and called on this line:
https://github.com/diba-io/bitmask-core/blob/536c795b69015cb8fee322498873e248753d75a1/src/operations/bitcoin/sign_psbt.rs#L12

[crisdut]

Maybe the issue is on the RGB side of things... I took the PSBT on-disk and ran the following commands (as per the demo script instructions in this PR):

btc-hot sign ${PSBT} ${DIR}/testnet

Account password:
Signing with m=[e37b9ace]/86h/1h/0h=[tpubDDYxWZRUVJm3yZ3wvC1uCukK4n29hk6Vmdf3RRzS7A9YDyXFYMARtaK26XhhJhoNkm3HtAvyPac9z6iqrfkTfiA51ciMA641FzXnag6fAjx]/*/*

Done 0 signature

Hi @cryptoquick ,

I think exists two situations occurs this:

1. The PSBT file is already signed
2. The signing account does not correspond with the list of inputs inside of the PSBT file

I hope this help

[afilini]

..so should we move this to the RGB repo?

[cryptoquick]

Well, the issue is, it doesn't really fall 100% directly into either project, it's using the two together, and ultimately, it's the call to BDK to sign the PSBT that fails. In the very least I could use a more helpful error message. I just ran it again, I was curious if I was using the wrong wallet (since we keep a different wallet with a different derivation path and descriptor for assets), but swapping the wallets didn't help. The full error is:

 INFO  bitmask_core::operations::rgb::send_tokens    > Finalize, sign & publish the witness transaction...
 DEBUG bitmask_core::operations::bitcoin::sign_psbt  > Signing PSBT...
 DEBUG bdk::wallet                                   > Found descriptor External/0
 DEBUG bdk::wallet                                   > Input #0 - 0a67cd6b1df62f5b74d470763eadfd520f6a9264e2fb0339db9e1092374d3ae5:3, using `create_height` = Some(2343448), `current_height` = Some(2345413)
 DEBUG bdk::wallet                                   > satisfy error CouldNotSatisfy for input 0

[afilini]

CouldNotSatisfy is unrelated to the signing itself, it just means that the psbt doesn't contain enough signature/preimages to satisfy the script.

Can you paste your descriptor here? I'm guessing either it doesn't contain the right private key, or there are other conditions that it can't satisfy.

[cryptoquick]

Sure, I've added more debugging hopefully this information will be more helpful:

 INFO  bitmask_core::operations::rgb::send_tokens    > Finalize, sign & publish the witness transaction...
 DEBUG bitmask_core::operations::rgb::send_tokens    > Finalized PSBT: 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
 DEBUG bitmask_core::operations::rgb::send_tokens    > RGB assets descriptor from BDK tr([8153ed60/168'/20'/0']tpubDChP3vEGR7L8niRPATwpHAwGrjV77L8UZBbvUz6gXEUjaWNJMaVUmBWWNk2rj3Y3kQk5R8Rhbcca43bet7yqPdfdRnVKd5Y3ijwhMyK2Wf9/0/*)
 DEBUG bitmask_core::operations::rgb::send_tokens    > RGB assets descriptor formatted for RGB tr(m=[8153ed60]/168h/20h/0h=[tpubDChP3vEGR7L8niRPATwpHAwGrjV77L8UZBbvUz6gXEUjaWNJMaVUmBWWNk2rj3Y3kQk5R8Rhbcca43bet7yqPdfdRnVKd5Y3ijwhMyK2Wf9]/*/*)
 DEBUG bitmask_core::operations::bitcoin::sign_psbt  > Signing PSBT...
 DEBUG bdk::wallet                                   > Found descriptor External/0
 DEBUG bdk::wallet                                   > Input #0 - 0a67cd6b1df62f5b74d470763eadfd520f6a9264e2fb0339db9e1092374d3ae5:3, using `create_height` = Some(2343448), `current_height` = Some(2345582)
 DEBUG bdk::wallet                                   > satisfy error CouldNotSatisfy for input 0

[cryptoquick]

It just occurred to me, maybe the issue is, I'm trying to publish using an xpub. After a quick refactor, I get a slightly different error:

 INFO  bitmask_core::operations::rgb::send_tokens    > Finalize, sign & publish the witness transaction...
 DEBUG bitmask_core::operations::rgb::send_tokens    > Finalized PSBT: 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
 DEBUG bitmask_core::operations::rgb::send_tokens    > RGB assets descriptor from BDK tr([8153ed60/168'/20'/0']tpubDChP3vEGR7L8niRPATwpHAwGrjV77L8UZBbvUz6gXEUjaWNJMaVUmBWWNk2rj3Y3kQk5R8Rhbcca43bet7yqPdfdRnVKd5Y3ijwhMyK2Wf9/0/*)
 DEBUG bitmask_core::operations::rgb::send_tokens    > RGB assets descriptor formatted for RGB tr(m=[8153ed60]/168h/20h/0h=[tpubDChP3vEGR7L8niRPATwpHAwGrjV77L8UZBbvUz6gXEUjaWNJMaVUmBWWNk2rj3Y3kQk5R8Rhbcca43bet7yqPdfdRnVKd5Y3ijwhMyK2Wf9]/*/*)
 DEBUG bitmask_core::operations::bitcoin::sign_psbt  > Signing PSBT...
 DEBUG bdk::wallet                                   > Found descriptor External/0
Error: Signer(MissingWitnessUtxo)

[dr-orlovsky]

From what I see from the given PSBT, there is no information for the address derivation on the single tx input (which comes from the third output of the previous transaction) - thus neither BDK nor descriptor-wallet is able to sign it. It looks unrelated to both BDK and RGB and rather an issue of the original PSBT construction (even before any RGB-specific stuff is applied).

[afilini]

@cryptoquick your descriptor only seem to contain public keys (tpub) so it will never be able to sign txs.

The second error you are getting means that the psbt doesn't contain enough metadata for bdk to be able to sign. In particular it's missing the witness_utxo in one of its inputs.

Other metadata like key derivation can probably be filled in by bdk itself, because it detects that the input belongs to its descriptor (when it logs Found descriptor External/0). So maybe you can skip the key derivation stuff, but it definitely needs the witness_utxo and the private keys to be able to sign.

[cryptoquick]

@afilini I've loaded the signing wallet separately with the xprv, and I'm using that for signing, but functionality in RGB for constructing the PSBT comes from the btc-cold wallet (part of the LNP/BP descriptor wallet), which only accepts a xpub, so I make sure they're corresponding and matched, as per this code:
https://github.com/diba-io/bitmask-core/blob/a55b19937c358d07fe44ebaac7616732597cf319/src/lib.rs#L365
It looks like BDK should have everything it needs. I'm not sure why it doesn't have a witness tx, though, can you help me understand that?

@dr-orlovsky After signing with the btc-hot wallet, I noticed the non-witness utxo part of the goes from having two keys, like this:

 {
      "non_witness_utxo": {
        "...":"..."
        "unknown": {
          "1685deb182fc36b4cc10ff438cf2cffbaec017a1e3818a1423fd32284e08c9de41": "00c59fa4215600008001000080000000800000000000000000",
          "17": "85deb182fc36b4cc10ff438cf2cffbaec017a1e3818a1423fd32284e08c9de41"
        }
    }
}

To like this:

 {
      "non_witness_utxo": {
        "...":"..."
      "unknown": {
        "13": "b8e09cb619cf42b70057b1bba7acba924acbe387a8017e19045f21fdb6edda813d7c42b2f4b3d386fbf5825d6dd57e39a35b88433eb347ff0bd3a69498a9755301",
        "1685deb182fc36b4cc10ff438cf2cffbaec017a1e3818a1423fd32284e08c9de41": "00c59fa4215600008001000080000000800000000000000000",
        "17": "85deb182fc36b4cc10ff438cf2cffbaec017a1e3818a1423fd32284e08c9de41"
      }
    }
}

That's the only major difference I see between the PSBT I create and send to BDK, vs the one that comes from the last step of the RGB demo script after publishing the tx.

Also, @dr-orlovsky, I noticed that I may have missed the finalize_mut step before providing the PSBT to BDK, but I'm not sure if that gets written (persisted) for the next step. There's an error from the following line (when uncommented out):
https://github.com/diba-io/bitmask-core/blob/a55b19937c358d07fe44ebaac7616732597cf319/src/operations/rgb/send_tokens.rs#L464
The error is: [InputError(CouldNotSatisfyTr, 0)]

Thanks for the help so far guys, I feel like I'm close to figuring this out.

[dr-orlovsky]

@cryptoquick the added keys are unrelated to the signing, they are proprietary and must be ignored by any wallet unaware of their meaning as per PSBT spec.

The tx misses witness_utxo since it has non_witness_utxo, which should be sufficient (again, per PSBT spec) for the signature to be created. I may assume that your issue is caused by the failure of BDK to process non_witness_utxo when no witness_utxo is not present, which is a non-standard behavior. But this is just my suggestion.

[afilini]

Yes I think for taproot we only look at the witness utxo because we (incorrectly) assumed most wallets would use that (since it saves a lot of space in the psbts).

@cryptoquick I'll open a PR to fix this, in the meantime as a workaround you can manually populate the witness_utxo of each input from the non_witness_utxo (take the TxOut corresponding to each input's vout) before passing the psbt to bdk for signing