The International Staff Band (ISB) is the premier brass band of the Salvation Army. Based in London, UK, the band performs Christian music in concerts, worship services, television and radio broadcast
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ffa1c0d4ab9dfae1769125e8076a848925d35b13e90cbb451dbe094bc4995f. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/725b0fa1-05d5-4228-b3e4-c83d5d1dc921.json and https://artists.proofprofile.net/proofs/artist/725b0fa1-05d5-4228-b3e4-c83d5d1dc921.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).