Sveinung Hovensjø (born 5 December 1950) is a Norwegian jazz musician (bass and guitar), known as one of the most used studio musicians in Norway, and also for his collaboration with guitarist Terje R
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 0x405f98c07b10935371a765105521060bc6f6752bd1a0c42dcf8f9f4890e103dc. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/46ab9d3a-aa57-4b5a-957f-3a827aa09e40.json and https://artists.proofprofile.net/proofs/artist/46ab9d3a-aa57-4b5a-957f-3a827aa09e40.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).