"The Purple Piano Project" is the premiere episode of the third season of the American musical television series Glee, and the forty-fifth overall. The episode was written by series co-creator Brad Fa
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 0x0439db64f58d8ab25ad5dd68ab4b7301b3fe90f1672a7d20f0eb69b7379926ad. Chain 2 (Bitcoin): anchored in block 954124 (2026-06-17T18:22:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b60fd78-1249-4b6c-92e2-6177dfef274f.json and https://artists.proofprofile.net/proofs/artist/7b60fd78-1249-4b6c-92e2-6177dfef274f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).