Max Richter (; ; born 22 March 1966) is a British composer and pianist. He works within postminimalist and contemporary classical styles. Richter is classically trained, having graduated in compositi
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 0x00844a0f675848229e5665492adb9fba1d0685be5a571b35d8d20c46a89900a5. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15203ae0-cabf-47ab-9060-cb8542e7a7d2.json and https://artists.proofprofile.net/proofs/artist/15203ae0-cabf-47ab-9060-cb8542e7a7d2.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.