Bruce Abel (25 July 1936 – 10 March 2021Wir trauern um Prof. Bruce Abel (25.07.1936-10.03.2021) ) was an American bass singer. Biography Abel studied singing at the Juilliard School of Music in New Y
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 0x046a32081476bd66569e1c438928ad593e61780247a066ac7b01a987960d72a3. 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/d5a69ff1-f1de-4d0b-962a-40fe93b5b2ee.json and https://artists.proofprofile.net/proofs/artist/d5a69ff1-f1de-4d0b-962a-40fe93b5b2ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).