Sigurd Lie (May 23, 1871 – September 30, 1904) was a Norwegian composer and conductor. Lie was born in Drammen. He grew up in Kristiansand, studied in Leipzig in the early 1890s, and then moved to Os
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 0x5b7ce0316f221a8829a499e0d1f061d3b9318efacbb8646317ae25506e6bbd8e. Chain 2 (Bitcoin): anchored in block 954031 (2026-06-17T01:43:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3b30bc84-69a8-46b6-b88c-c8e5d8386000.json and https://artists.proofprofile.net/proofs/artist/3b30bc84-69a8-46b6-b88c-c8e5d8386000.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Harold Wayne Collection, Vol. 25 (1902-1937)
Kirsten Flagstad. Volume 1: The Early Recordings 1914 - 1941
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 0xe04a007cb387d3600e12ddc20052cdf366183b8a6e9310d7d70c8054b69b4e85. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/NOFZS9508020.
Fem sange til tekster av Per Sivle: No. 3, Vaar-Von
Seks sange til tekster av Vilhelm Krag, Op. 1: No. 2, Valborgsnat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32cbc1e639fd746c92e8738fa85929a91cb10adbea7ee6604410934544d1779e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NOEHX2018020.
Her kjem me, dine arme smaa (Arr. Idunn Vindspoll)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a664c4d05e947f4750a99c3871190b24a5406e620eb8de4f98d902aa3ad5b75. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NOEHX2018060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99615e4a4b9a9451af1b6af427e921fa2a47cf9127ad04bedfe7effad927a4f5. 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/NOEHX2018070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87324d907ab7ee3451ab37efb65dcb72bc944895ef49e2db50b582f31f83568. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NOEHX2018080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896d4ed6c2aa0d6d895c87a9cbf2b7f3a3a42437226ab113f3f354e65bba1196. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/NOX9X3573617.
The Voice of the Century: Kirsten Flagstad
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc504ad07a91c23725c51bbe0369b1a5c9911a99efe74b170c50bbfc0838a4ad. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NOFZS9920010.
Great Norwegian Performers 1945-2000 Vol. 1
Handel, Mozart, Brahms & Others: Chamber Works
Valborgsnatt — Romanser til dikt av Vilhelm Krag