[sync with universe] unable to sync universe: proof for key is invalid

[Umiiii]

Hi, I am trying to mint my own taproot assets and I followed the steps:

• Launched bitcoin testnet with bitcoind, where the bitcoin.conf looks like:

txindex=1
rpcuser=umi
rpcpassword=whatever
rpcallowip=127.0.0.1
rpcconnect=127.0.0.1
datadir=/bitcoin/data
server=1
daemon=1
zmqpubrawblock=tcp://127.0.0.1:28332
zmqpubrawtx=tcp://127.0.0.1:28333

• Launched lnd, with lnd.conf:

externalip=whatever
bitcoin.active=1
bitcoin.testnet=1
bitcoin.node=bitcoind
btcd.rpchost=localhost
btcd.rpcuser=umi
btcd.rpcpass=whatever

• Launched tapd, with
  tapd --network=testnet --debuglevel=debug --lnd.host=localhost:10009 --lnd.macaroonpath=~/.lnd/data/chain/bitcoin/testnet/admin.macaroon --lnd.tlspath=~/.lnd/tls.cert

• Unlock lnd, create wallet address, and receive some testnet bitcoin:

lncli unlock
lncli --network=testnet newaddress p2tr
lncli --network=testnet walletbalance

after that, mint asset:

root@umibitcoin ~ # tapcli assets mint --type normal --name fantasycoin --supply 100 --meta_bytes "fantastic money"
{
    "batch_key": "0395abdd75f14cdb7ce6b70bd822146a24e9734450c9585fd3759eca76c001d508"
}
root@umibitcoin ~ # tapcli assets mint finalize
{
    "batch_key": "0395abdd75f14cdb7ce6b70bd822146a24e9734450c9585fd3759eca76c001d508"
}

root@umibitcoin ~ # tapcli assets list
{
    "assets": [
        {
            "version": 0,
            "asset_genesis": {
                "genesis_point": "6b47b7f3b5b4f016795cb9189fc1c03e8383aa811cb30b9d545232714dae0796:1",
                "name": "umicoin",
                "meta_hash": "4ff1b02c93487f8762f49d09877d2c8edcb19104ecff0bc0119b4f22b85b3e4c",
                "asset_id": "a466936816b579a3e94ddcfb6acebe6561783533fc726cbc0bb9c31ec7a046de",
                "output_index": 0,
                "version": 0
            },
            "asset_type": "NORMAL",
            "amount": "100",
            "lock_time": 0,
            "relative_lock_time": 0,
            "script_version": 0,
            "script_key": "0269de60f71c12b4a0af995d985ac0a6fb0d2245f46c1f1b66c991fecc8bc126f1",
            "script_key_is_local": true,
            "asset_group": null,
            "chain_anchor": {
                "anchor_tx": "020000000001019607ae4d713252549d0bb31c81aa83833ec0c19f18b95c7916f0b4b5f3b7476b0100000000ffffffff02e803000000000000225120c9b3a5ce2a56b709942c62b0cd03644861169d6de70864be277a4bbcd101289c84270000000000002251205d01bdb7edfc1e979f6d87abc68d5e028e16571c2d851f3621ef9ecbcbea8e7401403aa5205ab10d2602c1706a678d7138656b8fb53e20e6b904240967aa8a3315c2875a8b571b8d8ff900bae5d969ec517ec62b13df11d18459aa684cd4e0b4e4c100000000",
                "anchor_txid": "20bddae3da15e81dfced293be1b90a282b15d7765b3c8b9832cb0a517999361f",
                "anchor_block_hash": "196e7df84ee470d28ad1e4474989e38e98815d7eed9399bb0600000000000000",
                "anchor_outpoint": "20bddae3da15e81dfced293be1b90a282b15d7765b3c8b9832cb0a517999361f:0",
                "internal_key": "03e136f8df58e3cdd048c1004237c06f197dc903a14218b0e4a22dd35edad77017",
                "merkle_root": "a533a174f089f6fa7b58a204d3c2e4b15ba790567d7efc1fbc7ede0ddc7be655",
                "tapscript_sibling": ""
            },
            "prev_witnesses": [],
            "is_spent": false
        }
    ]
}

And then, when I want to sync with universe, I got this error:

root@umibitcoin ~ # tapcli universe sync --universe_host testnet.universe.lightning.finance
[tapcli] rpc error: code = Unknown desc = unable to sync universe: proof for key=(universe.BaseKey) {
 MintingOutpoint: (wire.OutPoint) afbb5f6b0ca78c2798d7671d5dccbd34efc8983079aa732b1f719779a95dfd8a:0,
 ScriptKey: (*asset.ScriptKey)(0xc0002efc80)({
  PubKey: (*secp256k1.PublicKey)(0xc000a20910)({
   x: (secp256k1.FieldVal) 7f9b360585bf4d55b05e4726514114eb0ec39bf1b27e19768d51e7b09ceab2a0,
   y: (secp256k1.FieldVal) 537430f37dd123fd639b1492b8e16ad2dee246a421b00cd0d04d2862faac4ea2
  }),
  TweakedScriptKey: (*asset.TweakedScriptKey)(<nil>)
 })
}
 is invalid

[guggero]

Interesting, it looks like you're trying to download a proof from the server that your tapd then thinks is invalid. So the problem might not be on your end at all.
Thanks for the report, we'll investigate.

[Roasbeef]

Dug into this a bit, and it looks like the proof returned by the server fails before the actual tap level validation. instead the SMT inclusion proof doesn't match the universe root we fetch.

[jharveyb]

Confirmed the same RPC error on my testnet setup, same minting outpoint. ScriptKey shows different x & y values.

[Roasbeef]

ScriptKey shows different x & y values.

Can you elaborate on that? As in another leaf for that asset group or something else?

[Roasbeef]

Some inserted debug logs:

2023-05-26 17:33:14.435 [INF] UNIV: Reconstructed root: (mssmt.NodeHash) (len=32 cap=32) 75fa411dc1702cb57819dc699b8c662f649cffda918efc4a750875f190cfe25f

2023-05-26 17:33:14.435 [INF] UNIV: Expected root: (mssmt.NodeHash) (len=32 cap=32) 174d433bd665bad3be8ea975c14e5945804d92913abd9852e024fc85c347d2f9

2023-05-26 17:33:14.435 [INF] UNIV: Universe root root: (mssmt.NodeHash) (len=32 cap=32) 174d433bd665bad3be8ea975c14e5945804d92913abd9852e024fc85c347d2f9

So it is the case that the roots mismatch. I think then this would mean the issuance proof isn't being serialized properly for the request/response of RpcUniverseDiff.

[vanditshah99]

Encountered the similar issue while syncing universe. I was testing a workflow to transfer one asset from one tapd instance to address generated on another tapd instance.

The CLI command I hit was : tapcli universe sync --universe_host testnet.universe.lightning.finance

And the output I received was
[tapcli] rpc error: code = Unknown desc = unable to sync universe: proof for key=(universe.BaseKey) {
MintingOutpoint: (wire.OutPoint) afbb5f6b0ca78c2798d7671d5dccbd34efc8983079aa732b1f719779a95dfd8a:0,
ScriptKey: (*asset.ScriptKey)(0xc000031030)({
PubKey: (*secp256k1.PublicKey)(0xc00093a000)({
x: (secp256k1.FieldVal) 63d5f10e1912bfbc9a53ea1decd49b55af231a30675a342b40954af6d1d2103e,
y: (secp256k1.FieldVal) 5c7da2252d8e24e26adaedb5f6887ff58c7699d3131812d94b22f683e670fc60
}),
TweakedScriptKey: (*asset.TweakedScriptKey)()
})
}
is invalid

[dstadulis]

Will be the team's P0 priority as this issue will be encountered by many users.

[dstadulis]

Solve by cleaning up DB state