Nicole may refer to: People Nicole (name) Nicole (American singer) (born 1958), a contestant in season 3 of the American The X Factor Nicole (Chilean singer) (born 1977) Nicole (German singer)
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 0x23bec886e24a977aace03dc23eb534c6ae8ccd4aeb1009c7da25afaee7ba6120. Chain 2 (Bitcoin): anchored in block 954013 (2026-06-16T22:27:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34ed2809-8394-482c-b497-aa343e46da92.json and https://artists.proofprofile.net/proofs/artist/34ed2809-8394-482c-b497-aa343e46da92.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).