Clue may refer to: Clue (information) – a piece of information bringing someone closer to a conclusion. People with the name DJ Clue (born 1975), mixtape DJ Fredy Clue (born 1994 or 1995), Swedis
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 0xf168fd32b054272f88e076e141fc31c15012daeb3f5bf4f49febef8af2b1c947. Chain 2 (Bitcoin): anchored in block 954020 (2026-06-16T23:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37f88dfa-a11b-407e-ae45-da533f49a3a2.json and https://artists.proofprofile.net/proofs/artist/37f88dfa-a11b-407e-ae45-da533f49a3a2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).