thumb|A 10th century Chola dynasty bronze sculpture of the Hindu god Nataraja (Shiva) posing various mudras thumb|Indian Buddha Shakyamuni statue making the bhūmisparśa or "earth witness" mudra, thum
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 0x880c6833b79a57db9be019b8025d00d79e5c5581b644c478de0045bb0a756414. 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/91e72ec7-2483-48eb-8c1c-6e920cf6f00f.json and https://artists.proofprofile.net/proofs/artist/91e72ec7-2483-48eb-8c1c-6e920cf6f00f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).