Bruce H. Babcock (born 1951) is an American composer. He is known for his works in television, film, and the concert hall. He has composed for various television series, including Murder, She Wrote,
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb73975cdc6b470d5b4f720143034b215f38b13b50e282197babd2daffd0aaf. Chain 2 (Bitcoin): anchored in block 953985 (2026-06-16T18:03:53Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2de3661a-3b56-48b0-a107-edef992881cf.json and https://artists.proofprofile.net/proofs/artist/2de3661a-3b56-48b0-a107-edef992881cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).