thumb|Taos Mountain and Wheeler Peak, viewed from Valle Vidal thumb|Big Costilla Peak from Valle Vidal, April 2006 thumb|A Philmont vehicle parked at Ring Place, one of the three BSA-operated camps in
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e8fc55684467002cf9fb1f6df76531209e577fd030c51527d74d65aa48cfbd. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/02b7e32b-4e07-4cf4-b48a-8409bf19e6e7.json and https://artists.proofprofile.net/proofs/artist/02b7e32b-4e07-4cf4-b48a-8409bf19e6e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).