TNC, tnc, or TnC may refer to: Computers Triangular network coding, a packet coding scheme Trusted Network Connect, an open architecture for computer network access control Education Trevecca Naz
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 0xfe091a9c0f5ec3ee329b632e25b7b69f0585d87b75e0c6ff9ae10c0fcce8b7bf. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3f3aab1b-8b69-42b9-8414-51629f6d9001.json and https://artists.proofprofile.net/proofs/artist/3f3aab1b-8b69-42b9-8414-51629f6d9001.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Relaxed (AMBIENT Version) [Instrumental]
Playa Del Aginstrumentalla (Instrumental)