Mark degli Antoni (sometimes credited as Mark De Gli Antoni) is an American composer, known for his work as co-founder and keyboard sampler for the band Soul Coughing from 1992 to 2000.Huey, Steve. "S
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 0xa51f4d0ce62d66b88c9f75b44c71edaf1c8cefc9be51ece3e5aa5a41676df94d. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a88a922-204b-4c7a-af04-d4f7a1295dc5.json and https://artists.proofprofile.net/proofs/artist/8a88a922-204b-4c7a-af04-d4f7a1295dc5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).