Penguin Prison (born 1983) is an electropop project composed solely of New York City singer, musician, producer and remixer Chris Glover."Penguin Prison (No 664)", The Guardian. Retrieved 22 June 2012
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 0x53df2d66af3f78a25e5af3496374a123f240a57aa8312c8ce608b4dddf8ab078. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/50691cdb-0854-4fd6-a10e-868596921724.json and https://artists.proofprofile.net/proofs/artist/50691cdb-0854-4fd6-a10e-868596921724.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).