Anders Jacobsen may refer to: Anders Jacobsen (ski jumper) (born 1985), Norwegian ski jumper Anders Jacobsen (footballer) (born 1968), Norwegian football player and manager Anders K. Jacobsen (bor
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 0x11d127e1dc2fa92be2c286b5debf4e724aef6473bb7fcd154e7a367c7b909654. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa6c3625-1eec-412d-aad1-3e975ecbba28.json and https://artists.proofprofile.net/proofs/artist/fa6c3625-1eec-412d-aad1-3e975ecbba28.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).