The Hank Zipzer: The World's Greatest UnderachieverHank Zipzer: The Mostly True Confessions of the World's Best Underachiever in Books 1–3 and Hank Zipzer: The World's Best Underachiever in Book 4. se
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651c3e7b7fb4b79de3d91202a55828738d10e369ee0bb17afabe5e56196864c8. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b457b3ea-8604-4e23-ab01-e86fedf31325.json and https://artists.proofprofile.net/proofs/artist/b457b3ea-8604-4e23-ab01-e86fedf31325.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hank Zipzer: Christmas Catastrophe (Music from the Original TV Series)
Christmas Catastrophe (Music from the Original TV Series)