Girl Thing were a British–Dutch girl group, consisting of members Jodi Albert, Michelle Barber, Anika Bostelaar, Linzi Martin, and Nikki Stuart. They were formed in 1998 by Simon Cowell and were origi
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 0x3607d5eb802074a195d250e5937ea7ae7c8cabb4256218116dd30d2a4f1f5965. 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/0ee2e858-7e10-4247-8eb8-35e4cab9b460.json and https://artists.proofprofile.net/proofs/artist/0ee2e858-7e10-4247-8eb8-35e4cab9b460.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).