The Ventures are an American instrumental rock band formed in Tacoma, Washington, in 1958, by Don Wilson and Bob Bogle. The band, which was a quartet for most of its existence, helped to popularize th
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 0x3381237b33912812662b5cacfc777269503c5139c77efc8b012e2d22ee903b88. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09088f32-0d97-46fc-a78d-b6cfcce35b02.json and https://artists.proofprofile.net/proofs/artist/09088f32-0d97-46fc-a78d-b6cfcce35b02.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).