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 0xb73244cc044b64b40573407da8255f41c468c7f01aa1f3dac8478a8dfcc525b6. 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/498282db-353d-4634-9119-a72665eff452.json and https://artists.proofprofile.net/proofs/artist/498282db-353d-4634-9119-a72665eff452.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 0x099183a934d8540b0185268051afe271e237e7bb93b1c3ecfe07c4ae8fb92935. 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/QM6XS2301766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830e83fc81c9e845014bbdd0914a5f1bc0cb87e0b08c5ef30c188abb23ee52fd. 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/QM6XS2301767.
Death Wish (Birmingham 6 Wishful Death Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651964c901d8bb89527d3c2d9a35617269c3e691a9a19ad5d98c45694e208c6a. 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/QM6XS2301768.
The Angels (Laibach The Zend-Avesta Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89965eaddcd88521e500ab23f8c7bb52332aaeb76672b562b0b270a6b7f6f79. 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/QM6XS2301769.
Cervix Couch (Spahn Ranch One By One Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875f78f26a9907d0968807c41b1c5c763621b11978b3863d7f2b42b94d38f390. 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/QM6XS2301770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e12ec62ebf39d2ce536e990c8f223f700f98ea59868336f7d918c64566402f8. 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/QM6XS2301771.
Spiritual Cramp (Electric Hellfire Club Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a51fb749a0749ad9723b1d0d99841341129af08ab8a186b92e45970b89c45cc. 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/QM6XS2301772.
Figurative Theatre (Die Krupps Extended Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95647f55b9567b9093c322fafa643fdae87c023c9af9b06366ffed82baa8490. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QM6XS2301774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b556e5cf209eb0d268a181d89428f58b6e7300b199b39633de2b8b8a0d18b6. 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/QM6XS2301775.
Down In The Park (Kill By Numbers 2023 Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab976b30a19fe44def54574eba6294f24fa073c77049d36ffb52f1f9c31fe76f. 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/QM6XS2301776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06925c6f81a1afd6a19167ab20cd761adf2c5a5d8cd2fe93237f5303485d32d. 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/QM6XS1902054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe818235dc58312f37c9327d2042c97aa90ec0b30061377168619461951c8d288. 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/QZFZ22144926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1532bcfd56dba1c8464c7c1bd86ea46bd7c82058ed3c7d4c8752948e56c14702. 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/QZFZ22144927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b67f750581bded80208ad25bb6e056cd8ec44c8ce2d3fe0f946f415e065e8a4. 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/QZFZ22144928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839473d97270be17d2a98721920937834213dd06c2ede66b445f7c561eff65fd. 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/QZFZ22180275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27c102c0f0685cb1a8adde24ecd089e4255ed7fa1f00b2f75bad9b470ffc6e5. 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/QZFZ22180276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dff8fe9737a111517ce5b9f1a7bc4516e22d710d79ff170d1b0b55f8f2994c1. 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/QZFZ22180277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43842bfc6bed7f7465686244bc7724e1a3e4ee645e0e1292bdbe1952a202d5db. 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/QZFZ22144929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f9cd2fbcb24797872422ece4a6887ace26465648150524a34382224f67b5276. 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/QZFZ22144930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8f870dd3f2f6dfa7e0046a18467c2ac42b5d23c57b07b1a0a037f63dc0db64. 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/QZFZ22144931.
Portal to the Void - She Past Away Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e823760565844e010cf206670e87b1b2c1b6df313dff10809830bb2089a8e5. 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/QZFZ22144932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb38d88322585d05f48af05a99fcd12b247b347736fad76a480d119d52bd8799. 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/QZFZ22144933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79f77935dc21273114d70b5a3151122f1e92daa54e25345241fb3d5fcee54b8. 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/QZFZ22144934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f0fa5f863a84bff58b87d9cbb3857a2cbd408709209341f0a392385cdc8164. 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/QM6XS1806818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13add944f1fa91e7581ee4e5c19a32cd13f7b55410ca7670c3fe047d7994b4ea. 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/QM6XS1806819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf32fa60fac38271e48db8166e31fe6b24ba00382608a053b163f1bd119ef18. 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/QM6XS1806820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f51fb80655c9504478d804287505e5101884b7a7f10a1f23ac47a120fd7ae56. 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/QM6XS1806821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb6c6fe339033c18530fd79f282e54589ec0efe1264b1740148c4aaabc45ab2. 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/QM6XS1806822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86fd213bf57e69a0b36c287f1583ab93ba1e0d90073da8d26552d3b2abb60ee. 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/QM6XS1806823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e37076c7776c1190803ae84456fad1528e8f923b4c61c12f066d489aeda1983. 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/QM6XS1806824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6785ad58987059b83c0d9bfb4837ad4512ab9f6a4dcdb370f8cfa5b064a25df6. 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/QM6XS1806825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538ff361157c95802e7ba6044b3b08c0076d81de197864c5093ef4f80b7bd2ef. 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/QZK6K2579654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1dc905b791611678ef11dae7c81760d583852ace478e71e1685db2cc718e59. 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/QZZ7R2450227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1dc905b791611678ef11dae7c81760d583852ace478e71e1685db2cc718e59. 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/QZZ7R2450227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e417bcdc532d07f2d134ebb13fb682e3c32ed9aeb501e352486ac05f2b96dfe. 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/QZFZ42178891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81eabeff6f93f18a071a7adfbb30266249f63c1fb811cb85f4c2dd809fa81e04. 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/QM6XS1901229.
Do You Feel That Way Too? A Tribute to Adrian Borland & The Sound
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b1ae96d98adc0b4bfe0edd113e0aeeed91e524ba87917a3b80c401af178ae5. 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/TCAJJ2554444.
Send Your Heart to the Riot (Creux Lies Remix)