Kensington Square is a garden square in Kensington, London, W8. It was built from 1692 on land acquired for the purpose in 1685 and is the oldest such square in Kensington. The houses facing, Nos. 1–4
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 0x5480926ee3d87e923e00ada59267160fae37a7d58fc0722ab9ef92da19ffb459. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91db0403-9b15-4167-8c0d-49ea7b871eea.json and https://artists.proofprofile.net/proofs/artist/91db0403-9b15-4167-8c0d-49ea7b871eea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dancing with a Stranger (Karaoke Version)