St. Louis Union were a short-lived mid-1960s English freakbeat rock band from Manchester who formed part of the mod rock scene. They were formed by singer Tony Cassidy, guitarist Keith Millar, tenor s
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 0xf2825e8ef2871a6d52856641804f8b290ae5b97ee88231390866fb25c6845b6b. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8065a69-a938-4925-b37e-5c0b478e7b0c.json and https://artists.proofprofile.net/proofs/artist/d8065a69-a938-4925-b37e-5c0b478e7b0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).