Silje Nergaard (born 19 June 1966) is a Norwegian jazz vocalist and songwriter. She is one of the best-selling jazz artists on the official sales chart in Norway. She became known worldwide after the
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b40716669325e7741651cbc8f47f51f3269741ce8b099d4fd7b8ed11c1b40c5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7f5b64c-fd73-47d2-99b3-23dc7ddff06b.json and https://artists.proofprofile.net/proofs/artist/e7f5b64c-fd73-47d2-99b3-23dc7ddff06b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb1d7f807c07c66505e2b1996c2f93b6030fd1d639de52891b4e086394b8e1d. 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/NOAMM0112050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f327e734ea1611391e138e36a20e11fbdb83f03499d9b83f1e5915c28ba046. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE2EV1000110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ccae0d6609b6dfe5513dba1c97a2540a33e2bfd5a2c9b4a93b193c58d21645. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEE862100745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b485ea051faa51a5eb4958c18ddd165f3a0b7111bdd981fc77d188dbbfe14e9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEE862101088.
I Knew That I Loved You (feat. Toninho Horta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbd9c33560fda8a37e3dafe064e8a8dbfafc49ea38c09d47639ede2db613a05. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEE862101091.
Candle in the Window (feat. Mike Hartung)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1769b1ed2445932c5fb2b6268c69991804556a23cffaed942eea608839591d95. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:10:05Z), 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/DEE862101093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0f83cac21f1a02ea2c9b4b7bfeca45794395a9314887e3d79894cee3c4e8bd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEE862101026.