Isaac Carpenter may refer to: Isaac Carpenter (drummer) (born 1979), American drummer, percussionist, producer, audio engineer and session musician Isaac M. Carpenter (1920–1998), American jazz bandl
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 0xbf8489caf73fd4bb659a41e889591f3f018a5942f1a6db6269afd55e99edecff. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc453e53-eb1a-4524-8a42-c4af803cd64c.json and https://artists.proofprofile.net/proofs/artist/bc453e53-eb1a-4524-8a42-c4af803cd64c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).