"Domino Dancing" is a song by English synth-pop duo Pet Shop Boys, released in September 1988 by Parlophone as the lead single from their third studio album, Introspective (1988). The song reached num
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 0x4ecd1dfbc7f12e093e19dde3927e070ccfdd1422a5c7ee3bc2c47f3ee24ea6c6. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/973d1517-4daa-4d59-af0e-80a39608a305.json and https://artists.proofprofile.net/proofs/artist/973d1517-4daa-4d59-af0e-80a39608a305.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).