Anders J. Dahlin (born March 12, 1975) is a Swedish tenor. He studied at the in Sweden, at the Norwegian Academy of Music in Oslo, and at the Royal Danish Academy of Music in Copenhagen. Music caree
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 0xf432db7503947cc36925e64d9249e5234e4627b96e1400f481cdf106af8ecfe1. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17fc72ef-317c-40f4-8b24-a05886aa5e52.json and https://artists.proofprofile.net/proofs/artist/17fc72ef-317c-40f4-8b24-a05886aa5e52.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).