Bamdamel (initially also known as Banda Mel until 1994) is an axé music band from Salvador, Bahia. It was formed in 1984 as a carnival block, Bloco Mel, and in 1987 it became a musical group. With 3 m
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 0xc457187fd07416070ae2975a0eb55c4d538efe60bc62f346c7a2394ec0eb8cca. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/06db9f5f-ff03-4a27-99c5-6ea232945ff9.json and https://artists.proofprofile.net/proofs/artist/06db9f5f-ff03-4a27-99c5-6ea232945ff9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).