Poke and Tone for Track Masters Entertainment, Inc.
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 0x5c338f038c4847ae4cc26ab5bf508bef74e7af8fba611c7cd079f575a6d5001a. Chain 2 (Bitcoin): anchored in block 953915 (2026-06-16T08:36:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a1cb683-2d3b-4702-bb5f-d5b4843d40a1.json and https://artists.proofprofile.net/proofs/artist/1a1cb683-2d3b-4702-bb5f-d5b4843d40a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).