Egil Hovland (October 18, 1924 – February 5, 2013) was a Norwegian composer.Hovland er død. Aftenpost, February 5, 2013 Hovland was born in Råde. He studied at the Oslo conservatory with Arild Sandvo
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 0x89049a42cf4be8b504b60c883bc514cb20981e240af74dcc9bb3e9d51c38298d. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8607c402-2df7-4874-af39-95ffe31eaac8.json and https://artists.proofprofile.net/proofs/artist/8607c402-2df7-4874-af39-95ffe31eaac8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Elementa pro organo: Organ Works by Egil Hovland
Koralpartita nr. 1, Op. 7: I. Langsomt koraltempo
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebbcd16e3e403e3e58a4882a3d0ea52b6886e2d6c0f2c98f51955e99246269a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOEHX1502010.
Orgelkoraler hefte 4: 3. Toccata over "Kjærlighet er lysets kilde"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57cae4ad3d4f37e6dc6c8f38751b876c45ab2f45627076ff71df631311427cc0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOEHX1502140.
Orgelkoraler bind 6, Op. 14: XI. Noël - toccata
Koralpartita Nr. 2 Hvo ene lader Herren råde, Op. 10: Coral VI