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 0x8cb85099606cc7b45459fc4e372a42e57b1f878ffd4b94118f55653d6e923e87. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/14461fdb-684e-415b-95b4-2fe0a1538a64.json and https://artists.proofprofile.net/proofs/artist/14461fdb-684e-415b-95b4-2fe0a1538a64.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 0xa7d889f6098dbe02fa2d660f57437b679df973d61f46dfcd650beb79ebf6bdab. 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/QZK6P2161514.
AZC SESSIE 2 (ROLLÀN, Piraat & Seffelinie)
AZC SESSIE 1 (ROLLÀN, Jozo, Piraat & Hiewi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0850cba6e860f29dbe878dd1cb607f57ad216d056c25b65f1fc23c5a236bb69. 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/NLE5A2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ecdbb0f1a84772fa063a1fad715a9fbb573df8adac0d867049a5e4de045d9e. 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/NLK2U1900285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e067709dbe93e62bba2fe95d383dbf9f967e637b0355b7cfc867e8d6930c52c. 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/NL3BN2200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953a598fa7c86a0668082179b8a80d74b80b9b9e33a25c2698a079840cb0d438. 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/NL3BN2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adb62eb05f4a59673dbb6e7c6ea80b12cda0f7444b64d0456856e223be83256. 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/NL3BN2200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45cc961d81ac023eeae53c50a2cae1bb75a8519f22da359460fac8dcf7359718. 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/NL3BN2200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1af9a0ab5a5933d3325e21a52e7773c2795a52a18152ff248348631ee449d86. 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/NL3BN2200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3272f2a3a974c909881bbdd3c01e85c4f944b071ded1f4511720345817b82e6e. 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/NL3BN2200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577589a40f5a6b722df3005e4bbeffd0201866b6d8d0be7f36393746a663202f. 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/NL3BN2200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f7675f9b6e6b92eca3f23cc8dbc7f946e3accf936c32278eed1920a0103839. 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/NL3BN2200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb989a0e128bca841e6fb19bf5d24d913097c17820a208c5f6151c12b2471661. 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/NL3BN2200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9945c2bcecdeb383505a401ff99f8c8968fb63943d99ee4c898a04f92a2cbbe4. 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/QZHNB2106073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9855e6bc6b554b1502e408ca42550e07e1f80216d23d2d400fe0e67740c0db19. 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/QZDA62160831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4f751fd0beafe271accb0fb018d709a007bca4bc9ec40a8ca3c7ee28ba90dc. 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/QZHNB2106074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534685194b4df76b422b3f3150b31de1a74950e8136665dff2c810d1a626e630. 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/QZHNB2106075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174f861772a43d204519031c6115543d3ff48425847116b3bb47887ed75fd62b. 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/QZHN32162276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297e8a835ac55e1f66845ee5958cf67c29ca9c787918f7cae7503ed4f799d4e2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZRP42236953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b30b800b9470edc9316008556e570f3f174dc1b88a06a5f7067694f296908bd. 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/QZMEM2261559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ae6d66c3ad01babe1319d9544f18875c13729ce54f632dde496cde55c7a94c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZK6N2251587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14c18ff5634e35c5a5801bdf29395be0645ed7338a6a8b60c1b6e8138a33f02. 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/QZHN52283436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79bbb8013aad05ee426d87638a81c4c26dcd1647bed75eec2136dbaebc8e6eaa. 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/QZDA42226931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a0c22d1971937aa1a241b7576431ef109e54b0af649bbf65efe836b296602d. 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/QZMER2167819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa393befa0944959fe20ed6a8763b7784ab77096896702d7d30b9fcb3f21862f1. 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/QZNWT2144442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa393befa0944959fe20ed6a8763b7784ab77096896702d7d30b9fcb3f21862f1. 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/QZNWT2144442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534685194b4df76b422b3f3150b31de1a74950e8136665dff2c810d1a626e630. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZHNB2106075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174f861772a43d204519031c6115543d3ff48425847116b3bb47887ed75fd62b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZHN32162276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9855e6bc6b554b1502e408ca42550e07e1f80216d23d2d400fe0e67740c0db19. 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/QZDA62160831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753782efdb3ee73a6749d75baefc8e837f03571cf0c0bd78c1fce37d56fc49c9. 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/TCAFE2023254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12142362eabfd5125e2bcb4397c82a9efdbb9db02f342224d92b674981aa0777. 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/QZK6H2076150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f410284df33e39280e1b33aa58f6a8c8c5badc35b536f3486df90c92f6b6923. 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/NLV6L2000069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93cf40517de8bd3381a6c2e1fe53d9fc64f9f8833b50a1181da37c36a003615f. 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/NLFX51900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2b21ead635b8ec5a2c250e2bb7f105cef308a149e0200e855bd97beb791a4e. 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/NLFX51900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651e5df568d2b5f62f84d79044a6160e2ee6f88bec6945658dc5603c600243b3. 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/NLFX51800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e13e7e2d07f630a81a49e4e8f3d69a2ea35ed582bf963c4f71ed50caf81561. 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/NLFX51800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef1aa3f2c32aad23e1c04d9a00ea6da9ee268ddac3faa79f2b3f48389defad1. 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/TCADG1740680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ee980c7c408bce037d67a69dd809fcc6f0192c1709c08330b35577cd401c5b. 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/USL4R2098233.