Daniel Goh Pei Siong (born 1973) is a Singaporean sociologist and former politician. A former member of the opposition Workers' Party (WP), he was a non-constituency Member of Parliament (NCMP) betwee
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 0x376bfc5b0d8dbb2e1cfb356e832c4bb347cd096dc81f8a3a7546344e9b67a5d6. Chain 2 (Bitcoin): anchored in block 953678 (2026-06-14T19:23:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/633451d8-87e2-4808-b284-8c79aab3a1d1.json and https://artists.proofprofile.net/proofs/artist/633451d8-87e2-4808-b284-8c79aab3a1d1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).