Frederick J. Maher is an American drummer, music programmer and record producer. He was a member of the bands Massacre (1980–81), the Dance, Material, Scritti Politti, and has recorded and toured wit
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 0x794f0b6a5bff0f51710657575ca31cf64656c0b7fefbe2c02547c7a09cbcef3d. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3fd25bc4-f680-465c-ab08-069322e581e9.json and https://artists.proofprofile.net/proofs/artist/3fd25bc4-f680-465c-ab08-069322e581e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).