Deno may refer to: People Given name Deno (singer) (born 2002), English singer and actor Deno Andrews (born 1971), American billiards player Deno Curris (born 1940), American academic administr
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 0x4a5b42318beb9ec2febfdea8c10e905242a68975006259d4ed6ca5ebf5f6f272. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e29d5824-bfa8-45a2-8b21-ec8af6f86e2f.json and https://artists.proofprofile.net/proofs/artist/e29d5824-bfa8-45a2-8b21-ec8af6f86e2f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).