Bloody Tourists is the sixth studio album by the English rock band 10cc, released worldwide by Mercury Records and in North America by Polydor Records in September 1978. Recorded at Strawberry Studios
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 0xb6a21fc72ee1ef6bad4bf4adbb845be73817f8f8825dd08fedbc41b1b10efc2d. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/14c02bd8-0b17-4bcd-9b15-04f47d9bcac9.json and https://artists.proofprofile.net/proofs/artist/14c02bd8-0b17-4bcd-9b15-04f47d9bcac9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).