Ola Kvernberg (born 16 June 1981) is a Norwegian jazz musician known for his virtuosic string swing violin playing and his international performances. He is the son of traditional musicians Liv Rypdal
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 0x85a491d16e0fb3f6e91f9ee453949a45f45fe51419b2b50ae836b5264ef69563. 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/0474d3da-70fb-4666-b8c6-82cab070a624.json and https://artists.proofprofile.net/proofs/artist/0474d3da-70fb-4666-b8c6-82cab070a624.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 0xfa270f360bdcbd4658274b9636c2eae16cd52c36d9b09f9a71fe177a5f521911. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NOFGG2165010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495f966dd46ec06cdf36a78bb6c0202dc8e46fd54e0fb3cf9b734bd053365217. 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/NOFGG1769010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ee467018d4735e8438a68bffb186c19ca7243a28ec47d84604019c22e8913b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/NOFGG1769020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9e36e1f6d92006c7a8be3af4649bcea304d283d86adb1c9559ce2caf01b8ce. 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/NOFHH0140010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c0246678254fb078ba862e555fecea332a7ae69f14d6f872cb64be0bed645d. 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/NOOLS1605011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfcecd7bcffbd3bd35065287dc69e9a0577718c180447397c0df581c65a212a. 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/NOX9X3046801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d0cc4a4f3c084b993ab200173d26a872ec48bedfc3bdc3499336a94f8e535c. 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/NOX9X3046810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3632765f31d7a6b47d6ddad145f21710a0f158eb09aa8a6334540082d336f42. 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/NOX9X3046811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1ccf54891ca2390e0d00b302079b3632ed664f2eadf0fa9ef48340cb68a7fd. 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/NOX9X3046812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855f7a2f349fc45b5dfd738a3cc696670cc20d62c1c0fd7e93d52bd0a70f2c5d. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T14:10:55Z), 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/NOFHH0299120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc119f5dfe599b643c69bc27f01c2234f300f23201f6156733fb278229622707d. 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/NOFHH0299160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a503d796b196fcad94d1d0b84954d0d857dd952918efd5a1cfbd3e67e29049. 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/NO3581801100.
Presenting Jimmy Rosenberg & Ola Kvernberg
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b0f126acc37131645f3f91c1629d4c1b8455b9a4afad115d70db97cbca8312. 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/NOFHH5812010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464db520287ba41028b8c42940dfe6b72df6a07dc40cde1a7bb22eed8abc1ff9. 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/NOFHH5812020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482f138fcfb1e8eafaa5d5ba3d08983dfba30df3696aea292c210ab0e3bd2da9. 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/NOFHH5812090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dcf974756344e8113be5e9b08516a77f0b0a725153d3205565ed66ac665d219. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/NOFHH1734002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66befedcaedfaf9d0631a0ba098c95240ef3a6fc80617744e54222d3b599d1f4. 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/NOFHH1734007.
Dreams, Drugs, and Django (Original Motion Picture Soundtrack from "Jon & Jimmy")