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 0xb44c62854826f9ed8ec36b110598b69804f4bca0fa3c16d836507c380256accf. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/49580b1a-ca12-4784-8be8-23b6dfca6600.json and https://artists.proofprofile.net/proofs/artist/49580b1a-ca12-4784-8be8-23b6dfca6600.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
This Has Been an L’s Production Vol.1 part one
This Has Been an L’s Production Vol.1 part two