Big Ass is a Thai rock band. It was originally a pop rock band but the music moved toward hardcore punk in some of the band's recent works. During the band's early years until mid-2012, the band's lea
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769195294e7f104590c72896729bba341b97a923729ea389db6b61f3c4ebd803. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb3e415e-9c69-4690-b46c-54f1c808abe4.json and https://artists.proofprofile.net/proofs/artist/cb3e415e-9c69-4690-b46c-54f1c808abe4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).