Lampen is a surname. Notable people with the surname include: Aleksander Lampén (1879–1935), Finnish engineer, politician John Lampen (born 1938), English Quaker and writer Timo Lampén (1934–1999), F
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017726a7e8e916834978641f2f25a38b03c31014e17149139c25550b9ee53755. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/243ca2e8-8550-4d49-b3cc-d2a73b8e3a5e.json and https://artists.proofprofile.net/proofs/artist/243ca2e8-8550-4d49-b3cc-d2a73b8e3a5e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).