Rudi Wairata aka Rudy WairataThe Komedie Stamboel: Popular Theater in Colonial Indonesia, 1891-1903 Matthew Isaac Cohen Page 442(1929/1930 –1981) was an influential Indonesian musician who had fronted
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 0x647908780e62e1cd7d4a96f86d75c3b05d00da27c55ae2d905936e29c708305f. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f08ef617-72f9-4a78-8bc1-85c86c9b16d7.json and https://artists.proofprofile.net/proofs/artist/f08ef617-72f9-4a78-8bc1-85c86c9b16d7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).