Harambe (, ; May 27, 1999 – May 28, 2016) was a western lowland gorilla who lived at the Cincinnati Zoo. On May 28, 2016, a three-year-old boy visiting the zoo climbed under a fence into an outdoor go
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 0x0881424f917b735129805f3f8d5762c438b2f14905466e8c3e9e5962d9548aef. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/404c3f27-dc8e-4280-bd5f-cf3f02e30eb5.json and https://artists.proofprofile.net/proofs/artist/404c3f27-dc8e-4280-bd5f-cf3f02e30eb5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).