Tinc or TINC may refer to: Tinc (band) from Japan Tinc (protocol) in computing Tinc (retail), UK store chain The (International) Noise Conspiracy, a Swedish rock band There Is No Cabal, a Usenet
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 0xd80ed5be6d74813936413d6287627859c1539e295d3389de71cd6ec37665f353. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4ca14c7-6c88-4572-99a4-45a6db4df391.json and https://artists.proofprofile.net/proofs/artist/f4ca14c7-6c88-4572-99a4-45a6db4df391.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).