right|thumb|300px|A Mossberg 500 12-gauge stockless pump-action shotgun with a pistol grip right|thumb|300px|A Remington Model 760 .30-06 Springfield pump-action rifle Pump action is a type of manual
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 0x3346cff0b15a3d7b2770d74933d4637de2877c245dbc1daea9943035fc41c14f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7fb3503d-6c2c-442c-a2e6-b47004298e52.json and https://artists.proofprofile.net/proofs/artist/7fb3503d-6c2c-442c-a2e6-b47004298e52.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).