Anthony Tidd is a British-born bass player, composer, music producer, curator and Guggenheim Fellow who has been based in the United States since 1999. A well-known name on the international jazz scen
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 0x068729adc027ecf8c4605bc2bbca787b182ac989400f810a5fc1b726e6be6ea4. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4a281af-e5d4-4ae4-9bc8-9f0bccd48146.json and https://artists.proofprofile.net/proofs/artist/a4a281af-e5d4-4ae4-9bc8-9f0bccd48146.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).