Terry Paxton Bradshaw (born September 2, 1948) is an American former professional football quarterback who played in the National Football League (NFL) for 14 seasons with the Pittsburgh Steelers. Sin
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 0x9343dbae948b6dffe180b9cf54e67871c866cdb9a19f62c8c50253658e5b744a. Chain 2 (Bitcoin): anchored in block 953985 (2026-06-16T18:03:53Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2df8c63d-7304-403b-88c2-87783ba06d37.json and https://artists.proofprofile.net/proofs/artist/2df8c63d-7304-403b-88c2-87783ba06d37.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).