Tokyo Square is a Singaporean band formed by lead singer Linda Elizabeth Dana and guitarist Peter Han in 1984. After receiving regular gigs at a theater disco lounge, the band was then joined by Dana'
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 0xed32effde240017eb47179d23b951f76667a585902f3b8d4b1531e5e8ddf0f8c. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23fb0241-9def-42d1-9a8e-5cc3a1401094.json and https://artists.proofprofile.net/proofs/artist/23fb0241-9def-42d1-9a8e-5cc3a1401094.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).