Bradley Aaron Shapiro (August 15, 1938 — October 3, 2024) was an American musician, songwriter and record producer, whose credits have included work with Wilson Pickett, Millie Jackson, James Brown, a
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 0xee7a0064c9b9cb30a994545f1e57c06a00961415a4943fcff43bbf96f6defb85. Chain 2 (Bitcoin): anchored in block 954125 (2026-06-17T18:27:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a9c5f36-7afe-4bd2-99df-160bc136fbc9.json and https://artists.proofprofile.net/proofs/artist/7a9c5f36-7afe-4bd2-99df-160bc136fbc9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).