Coraline ()Archived at Ghostarchive and the Wayback Machine: is a 2002 British fantasy horror children's novella by author Neil Gaiman. Gaiman started writing Coraline in 1990, and it was published i
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 0x11dc403ce2641063feaa1014f39701eb71b7c4b37ed04c2e55a182c418ca49a0. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80e08f5c-85e3-4bac-8fa7-66c1e6775837.json and https://artists.proofprofile.net/proofs/artist/80e08f5c-85e3-4bac-8fa7-66c1e6775837.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).