Fred Arthur Braceful (May 2, 1938 – March 17, 1995) was a jazz drummer. Early life Braceful was born in Detroit on May 2, 1938. He played in his tenor saxophonist father's band early in his career. H
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 0x75505ee7a715ad81af59fe6f34cb92d838a61cfe08f48abed6dd79a1f7c55d61. Chain 2 (Bitcoin): anchored in block 953915 (2026-06-16T08:36:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/19940b41-14f9-4dc9-b46b-00696ec5e2de.json and https://artists.proofprofile.net/proofs/artist/19940b41-14f9-4dc9-b46b-00696ec5e2de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).