1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x4814de3ba8a3fc7d4bfc8831660b831be341d696865f45cabe0c397752537b55. 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/bee7878c-d61f-4c31-bf3d-64665c60b3c0.json and https://artists.proofprofile.net/proofs/artist/bee7878c-d61f-4c31-bf3d-64665c60b3c0.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 → block OTSBitcoinBlock must exist at that height 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 0xdc9edb650e99619022b2c3bba1c5f658473f5887a489c039637b988ca1d85145. 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/DEP961900062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd918f950ddc3a696c789feda4ff6f223d9d5daa65aaf1e47ef6fbff820c34f29. 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/DEP969901016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb98c0dd2ca51f935b3805a0e4592afc38f446fc884eef74fd03cd93f5f52e4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEP961800043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07290fc2fb36c30edc53ffc6e040775b58444812ab0e4cebefe6659f8b6c44e8. 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/DEP961900066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a50033ac6f6172224e19d7e1ea8a686b4de0af229151d51fd75e3e8053134cf. 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/DEM099900066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c25269bddc4363b80ebad1641b350a5a703d354310b7eaf5f43b0ec4e3a8c4. 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/USUR42341801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0280a307eaf40a87305241763eb1205dde5bc47efa828551b9b51cea4002bf. 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/USUR42341803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0daebf62c4455785f05dde4daa081e05f9320380382712ce20f93faddea3ff56. 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/USUR42341804.
Tokyo Business (Daniele Baldelli & Marco Dionigi Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665b70119d5130c8698865123b3305602668d523e8b51ec8c269d67a2e8e99b5. 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/USUR42341808.
Riad De Lister (Emperor Machine Special Extended Dub Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91742975aa15eb49cb7d00c0b77ba93e72bfc9ef063d22a4ab05cf8f6a576b6a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USUR42341811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86974daf3645c6440f2fb98a39a65c3a1e072c59b064aaae345d09606fbdc7ab. 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/US83Z2128397.
Toolroom Radio EP362 - Presented by Mark Knight
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5bebfd1414f80ca792308712cd8f255cc7834dfcb431ed06c3364729c996ec. 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/GBJAJ1700233.
The House Sound of Midnight Riot, Vol. 1
Downtempo Organic Frankfurt 002 (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e7a12282982235d52f1b882574746e8c9fd8fbc323ecdef1c51784f6abde02. 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/US83Z2216590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8c9ea5c6ecb4679074840ba930ced2ab786dea73a6a56ea3f190cf34478bc7. 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/US83Z2131177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03564e32ef9ee59bc51356352cadf48accf22edfeac6e638227b080076c71dd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US83Z2131178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86974daf3645c6440f2fb98a39a65c3a1e072c59b064aaae345d09606fbdc7ab. 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/US83Z2128397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bda36e6fad2b36428a6411ae95639c3731f9dc6e16ed24c9fb4ac4a6d8c914c. 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/NLRD52350496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d1bac00cbb86e69941ee63f5ff61658661c267eb5c9c5895cf8690107f0c3a. 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/QMDA62460381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37d2f8c260389e68f14d7aa34f8e8018bb860935c4e8dee4c0c2edaef1b266f. 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/QMBZ92339319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741a900d4e9d62ac35db8c8cc9b79ba5987a536bbde011a1bbf1ffe8329039be. 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/DESH42200108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43d3b36ad3f17eb2b606777e29943c2e856ccb862f12418a144f7c5fb5c174b. 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/DESH42200109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b511fd5ae0b2a5a2206224548f7d348a673813c56777da5fc1cceea28b7612e. 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/DESH42200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a056838098194a2bdf6c32f17bac4ea3aaa36e59a57b4e130184478babca4d. 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/US83Z2210436.
Walking the Road (Incl. Dan Bay & Le Rubrique Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d737ecbe79a21c5c79ee04285524d9fbcc305ada37fd2ce58282b3044ed915c. 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/DECY51902465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4faa82087a30881f7c32c9685c097a46baa70bcb27072733ce19a8ba8c92ffbb. 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/DECY51902466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c784102b9ce5359a49195dbeadebf40604adb28c2cb5ebf911949ee64404041. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DECY51761101.
Bossa #1 - The Late Night Dance Remix by Le Rubrique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c85c4a2c5f59f7a0c3df01601d1147226a389da318b8a4f6a9d96b43607663. 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/DECY51761102.
Les disques du bord de l'eau: Spring EP 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d4d3f30b8ff1df67f80b2920f26b651662f56dda53ff4d28c6fbc73917d3b9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CHF252200001.
La Revolución - Dan Bay & Le Rubrique Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e33a8de323fce2e657bf448ea28c7ac9d47b8e1388f86a59c23e956f69b7ea. 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/CHF252200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5600812f4c49488c699340f823a5ed53f228b3e9852c95b5b49a93db66858492. 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/US83Z2007395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b77aca59ef1057e0211caee72d243937a27d2e47ac999adbd77009c33e7e9e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US83Z2007398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365bf8e5934a5f730310615f14dca623585bd1f39b00c607f7c542300ed10b0c. 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/US83Z2007400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e67cc07f95121ce35c061c1cbf1dbd9354ce8cf3835952716e518329e1a422c. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/US83Z2007401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158f7a7111239393bda2a2c39b720715e48886592855eaf28393b0d8fea33316. 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/US83Z2200984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c012e855118e5d88514d44a20ef0e059591737922564f6c4abd100f6f7facc. 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/DEP960700116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741a900d4e9d62ac35db8c8cc9b79ba5987a536bbde011a1bbf1ffe8329039be. 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/DESH42200108.