Aschel Joseph (12 February 1885 – 23 October 1952), better known as Young Joseph or Young Josephs, was a British boxer who was British welterweight champion between 1908 and 1912 and European welterwe
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 0x1ca8357777f0c827262a1a85b18d9ff0fdfe12b65567ae72bc2979da15ac6af2. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/775490a4-73f0-45b3-a0b6-1e2e92297d63.json and https://artists.proofprofile.net/proofs/artist/775490a4-73f0-45b3-a0b6-1e2e92297d63.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).