Daisy chain may refer to: Daisy chain, a garland created from daisy flowers Daisy chain (climbing), a type of strap Daisy chain (electrical engineering), a wiring scheme Daisy chain (fishing), a
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 0x0aff268446ab56a876e9a8d0f48e806209e57f73023aea7f52456ba31642a8b9. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cd2dc08a-ba7c-4743-b1b1-aa28d7ccf6e1.json and https://artists.proofprofile.net/proofs/artist/cd2dc08a-ba7c-4743-b1b1-aa28d7ccf6e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).