The Tutts were a five-piece New Zealand rock band from Auckland. They released their first single, titled "K", on 21 November 2006. C4, a New Zealand music TV channel, used "K" as a promo song. The T
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 0x8b5e402b61b3e4883a18e9bb93c6315c93db834b1d3b70519019ea65d9a38ce6. 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/5dba67ee-5664-4d99-a32a-77eb66b14da3.json and https://artists.proofprofile.net/proofs/artist/5dba67ee-5664-4d99-a32a-77eb66b14da3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).