Joseph Anthony Mantegna ( , ; born November 13, 1947) is an American actor best known for starring on CBS's Criminal Minds since 2007 as FBI Supervisory Special Agent David Rossi. He has voiced the re
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 0x247719ef3854abe1d338192ff1ba6b971f148bfa896aa6b180e45e3ac7986bba. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8413834-da11-4d55-9489-14d6d1cd761f.json and https://artists.proofprofile.net/proofs/artist/a8413834-da11-4d55-9489-14d6d1cd761f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).