Carl Valdemar Jussi Henry Adler-Olsen (born 2 August 1950) is a Danish crime fiction writer, a publisher, editor, and entrepreneur, best known for his Department Q series. He made his debut as a nonfi
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 0x49b8bc60486f92fc950579dd251acc0838373721325a052470cb0a6544ad337a. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75da00f1-6daa-4587-a44b-69ae43699dac.json and https://artists.proofprofile.net/proofs/artist/75da00f1-6daa-4587-a44b-69ae43699dac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Selfies. Der siebte Fall für Carl Mørck, Sonderdezernat Q (Ungekürzt)
La víctima 2117 (Un caso que sitúa Barcelona en el centro de un rompecabezas criminal)