David Werner Amram III (born November 17, 1930) is an American composer, arranger, and conductor of orchestral, chamber, and choral works, many with jazz flavorings.Chagollan, Steve, "The Extraordinar
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 0xf50025fc4451c6dbe259884731d65a0bdce00fdf9c71836d193ca8325a6a5a4e. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/42ce6b7f-eb9f-4374-98e9-19993299edb0.json and https://artists.proofprofile.net/proofs/artist/42ce6b7f-eb9f-4374-98e9-19993299edb0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).