Didrik Solli-Tangen (born 11 June 1987) is a Norwegian singer who represented Norway in the Eurovision Song Contest 2010 with the song "My Heart Is Yours". Biography Solli-Tangen was born in Porsgru
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 0x664a07e60db22c3cfa21c95bcfecea034e6b8912f269cfc87f85efd7f3b2e320. 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/d049abe6-b570-4e4a-88cf-f5ce3a6a0975.json and https://artists.proofprofile.net/proofs/artist/d049abe6-b570-4e4a-88cf-f5ce3a6a0975.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 0x4c00a6dbeef16b9db00fff6fe43e6bb4dcf3317b0dff6a71e9d0b0f176ce76ce. 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/NOHLX2014010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4422279b484ca0ac3ed3b8b5bc5b92bb7067e5c7cef985f6368dba06007aa8. 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/NOHLX2014020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c637682ebc020660dff8ee077be951bd567b17a658aeb5f92ee981e608e1e3. 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/NOHLX2014030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228936ed9024cde5333769feadae5451fa99c8504fd808fdc22a3622f8c2c59c. 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/NOHLX2014040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ec813a1dea0e830a1ec69e72d281433d239ce35bdb58d0722a2b36f588b392. 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/NOHLX2014060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2121b74fd29e0803f81927fe5130019f18de7aa955d51802dab4351138185c24. 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/NOHLX1879010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b760a78770c104374d261a5ab90a721c744a5517d9d856cab9dcd2245463b6. 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/NOHLX1879030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ae6bee5742ba085dee9129df719ea5130c0ff4ae8289db6df6e00e24c9ad63. 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/NO38K2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44495a413533ab16f94996e29296199d79109afac4a598b293b0827ffd6b7dd. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:49:44Z), 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/UKXN21996247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e192fda0453654fd4bdc110d58d552550d2539eaf3092dd5f1bc2e13f2b8bf. 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/UKXN22186044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fcbf44103e6c7c07abfa3cee6ccdad499345038bfd0ada3f793795f6afd01a. 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/NO2EC2001010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fe02716c4b82b4f9f49e8d5b4962e350a14b501dfc3d6bb4c3438258549aed. 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/NO2EC0901010.
Elias - Alle Sangene Fra Filmene Og Tv-Serien
Godnatt (Den Lille Redningsskøyta Elias 2006)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856b4d336144e9520e209f1bd5a8c4fc62b17946aafe9fb0bac8c30cbc1cff12. 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/NOX9X4068716.
En hyllest til Jahn Teigen - Hele serien
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e3797fbba8816a3fec26fa5383e16f72f945064441c86f071168024e1e9a25. 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/NOCLM1602010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5746e8f8568e493e1a45d6b71561ecd78c9cc13df62929a6a71554a87e4be6fd. 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/NOCLM1603020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ca1fcb9535e0079f13bbc32de58d256fc1a9b2dd33b4309ff480348cceeaff. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NOCLM1604030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a14fde8772024057fb14871f5f01791098a8d2c670eba7e8a21a75538d45b10. 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/NOCLM1605040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f96191d5bdbae59b7c88b645bc46635faec4e4a2998a41d1199c934aa7c0b74. 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/NOCLM1608070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc306dee57565ea172453b95e32a7dc1474ce0f020bbea0a6a21f2fa55748cc6a. 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/NOCLM1613120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46bb53a0f372d094f599b85c6306d8c2da4d535061152e9db2a421fb6971594. 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/NOCLM1614130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67192d38a366e4f9396d6a915a33310a75a6d9b552e79e770c2d5a4acac6e7fd. 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/NOHLX1643020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa935af8d2f5e294afef2dd23d643ef56d47e5710d4eebccda55edb72b2b0b944. 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/NOHLX1871030.
Vi Har Den Ære. En Hyllest Til Thorbjørn Egner
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6defbc6e6047b872fca4c2cfb7040cc042cb02fb73a3e00376666adfff3966eb. 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/NOHMA1255030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa935af8d2f5e294afef2dd23d643ef56d47e5710d4eebccda55edb72b2b0b944. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NOHLX1871030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9a2792528f85391cdbbfbc0b46fbda6605fa74ef71c8cea1480308ff219fbe. 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/NOWHG1201030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b7f385acd15db1401ef8d2ddf2824b649fddbcd0bf45dd39a70efd485255c2. 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/NOHLX1757370.