Bibi is a given name, nickname and surname. People with the nickname or stage name Bibi Andersson (1935–2019), Swedish actress Bibi (artist) (born 1964), French visual artist Fabrice Cahoreau Bi
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 0x0e251004daf993852e6ffb689f75263b7d13acef73e46668ec82a852fc8d4e96. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/517177ab-bd3d-4d08-9036-74160a7b8590.json and https://artists.proofprofile.net/proofs/artist/517177ab-bd3d-4d08-9036-74160a7b8590.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).