thumb|right|200 px| Jørn Hoel Jørn Hoel (born 27 July 1957) is a Norwegian composer, guitarist and singer. Hoel was born in Tromsø. His album debut was Ubarbert from 1982, and the album Varme ut av
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 0x2c6c15287ee25eff50db2f87117116d2555515532fb9b0e4ff73650a7d9182cf. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2e93e30-4d26-4e4c-a9b9-6cdb11d7d7ac.json and https://artists.proofprofile.net/proofs/artist/f2e93e30-4d26-4e4c-a9b9-6cdb11d7d7ac.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e7704e8eaeb2abd454996c74f2607ac4562083478766923bf9c36f2d2a0b68. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NOACS9502020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c78042d8bc5e0e131cd0efa3d24ac316c6ab8a6f4cc948c7c9d5497080ea99. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NOUM71100691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3689e60f830a9e7692bcc2c77f25d4e6791dd94a712c35ce683f413d0c028c7e. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/NOACS9502110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b9aeef02f66644ea7db9f98433942577fd8680ad9c9e7f3cd2df98c1507c40. 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/NOACS9502080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4292bbb3f0e90a73b8e62f0c8f608a6e7704addb3752a6173b88ede7e3033f9f. 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/NOACS9502050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6110302e3f49972240cbd0b868349ffe31d2464b6dca57a2619cbd09cc07fb9. 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/NOACS9502030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa42e45201b1851f8d6f2b2d65d7e19b7609255bf39d40ae21021ea686aa41e5. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/NOUM71100692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff17109e39933be33f329e0ea5ba6fc8dbc92ebcb05c34c22bb3f10f4d2f76d. 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/NOACS9502140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e7704e8eaeb2abd454996c74f2607ac4562083478766923bf9c36f2d2a0b68. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/NOACS9502020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6110302e3f49972240cbd0b868349ffe31d2464b6dca57a2619cbd09cc07fb9. 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/NOACS9502030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18665e624747a84dde37abceae2432afdafe0032c7eb717956f3271cc83796b7. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/NOACS9502040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4292bbb3f0e90a73b8e62f0c8f608a6e7704addb3752a6173b88ede7e3033f9f. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NOACS9502050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bba7af9a79906154094cb5739cbcfde2611a74a9afc2e9e5a3dac4eda028b3b. 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/NOACS9502070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b9aeef02f66644ea7db9f98433942577fd8680ad9c9e7f3cd2df98c1507c40. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NOACS9502080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e3c6c5743e26fadc3c3eb1522d64eed111f7ead708f3a9ecaa78f44c3a3622. 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/NOACS9502090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3689e60f830a9e7692bcc2c77f25d4e6791dd94a712c35ce683f413d0c028c7e. 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/NOACS9502110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec180c068992eaa10ff56ffd474841a312aad304d07461286fd372c8e1bde36. 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/NOACS9502120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be95b28a52f66c25495416395df7ccc67d57c8b597beb1f27c71d65663c585c. 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/NOACS9502130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff17109e39933be33f329e0ea5ba6fc8dbc92ebcb05c34c22bb3f10f4d2f76d. 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/NOACS9502140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e174ad6993944f820b00718011f3daa5baeded5054f4416d7824ac551b7ad6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NODLC0701080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d7dba2c3bee33b683493cf37e62a5c9e8100e8805f18acac251bb5439ac584. 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/NOAFP9308100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8bdd01620a416fd71d930929a8c016cb60708cb674f20ba443bbdb2663bca8. 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/NOAGW9601020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb645b35e8599efc8d38e9612b4dc7b479da7666c06412e38e981aa69aaeb5420. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NOAGW9601010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298174a5e44f30c64538579e5b3e6ae46a0e47557d5a806d6f2ff8997018a51d. 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/NOAGW0009090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c48e6b50134a4066c9a97abdff30f83a9a833127112b1eed809b8e7ae23a24e. 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/NOAGW0009100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb645b35e8599efc8d38e9612b4dc7b479da7666c06412e38e981aa69aaeb5420. 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/NOAGW9601010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d7dba2c3bee33b683493cf37e62a5c9e8100e8805f18acac251bb5439ac584. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NOAFP9308100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6314b4bf19b3d2ece0cca22f531d7c02c1708acb71111a628c347aa4e298b8a1. 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/NOUM71100711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e3c6c5743e26fadc3c3eb1522d64eed111f7ead708f3a9ecaa78f44c3a3622. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NOACS9502090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23cd6324f56e7c4b51018d41706e6a2d2face23603fc7c98f017e2334e2f3175. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NOUM71100716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc27564cf2f583f4c0377f7a2b5c2c2208e633848e67365982625b54423ade0. 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/NOUM71100717.
Love will make you do things that you know is wrong
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18665e624747a84dde37abceae2432afdafe0032c7eb717956f3271cc83796b7. 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/NOACS9502040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bba7af9a79906154094cb5739cbcfde2611a74a9afc2e9e5a3dac4eda028b3b. 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/NOACS9502070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50d0a6cb9129e00c01380732d75a2578093727007012c11f88650855830b8b2. 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/NOUM70800111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b14d82aee296b200a58043e3642e53178a4f3afa2b6eb3965ab491f6c045976. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NOUM70800112.