3pm is a New Zealand children's show hosted by Suzy Cato. It screened on the independent station TV3 in 1992, and featured an oversized pumpkin, games, interviews, viewers' mail and cartoons. The show
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 0x759255a49586d42d6195ac811c0e267d4c9b4e0e26e61bca9d06b39a00d9bcd9. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e009a592-d797-4f5b-8f9d-caf1948f8e85.json and https://artists.proofprofile.net/proofs/artist/e009a592-d797-4f5b-8f9d-caf1948f8e85.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Treasure Hunt (Original Video Game Soundtrack)