BBO may stand for: Barium boron oxide, another name of barium borate Big Bang Observer, planned space gravitational wave observatory IATA code for Berbera Airport "BBO (Bad Bitches Only)", a song by M
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 0x0085d7a119bac75bc9eaf3f42d991e336856efac6d429bce905956c41e564dc3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b5ad841-eee3-4aab-8252-42684dd79a02.json and https://artists.proofprofile.net/proofs/artist/5b5ad841-eee3-4aab-8252-42684dd79a02.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).