thumb|right|upright=1.3|SN 1994D (bright spot on the lower left), a Type Ia supernova within its host galaxy, NGC 4526 A supernova (: supernovae) is a powerful and luminous explosion of a star. A supe
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 0x7f0b8e2cb37e57e319bafbfd0dd7e29246efa40a56e7fdd9b9eb13090ce1c798. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8c88d219-707c-4431-8b79-29fd0e6188f4.json and https://artists.proofprofile.net/proofs/artist/8c88d219-707c-4431-8b79-29fd0e6188f4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).