Viveka Kristina Seldahl (15 March 1944 – 3 November 2001) was a Swedish actor. Born in Överammer, Jämtland, she was partner with the Swedish actor Sven Wollter from 1971 to 2001, they have the son Ka
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 0x800e71b2d2a6fbfcead374ade60fb96863f07c69206d179675e1102dff20fb72. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b39fef2e-e823-4aaa-b688-511a2e65d8cc.json and https://artists.proofprofile.net/proofs/artist/b39fef2e-e823-4aaa-b688-511a2e65d8cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).