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 0xe0eff45f4ae47efd5f57ad8b43574baf0ba5f81dcc0dcd5809cc33f49daa80a9. 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/882f178a-40b8-4bd7-b545-64f1cc25d05d.json and https://artists.proofprofile.net/proofs/artist/882f178a-40b8-4bd7-b545-64f1cc25d05d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Eens, als de bazuinen klinken - Instrumental
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 0x4e53bf6edc6f1072603685f56a434baf5472b1fcc5121239aaa1490d0bbe76f8. 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/NLG620573613.
Ik wandel in het licht met Jezus - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d43e3174d90a9ff5498cd9766cdeb018c06f347387596a5541bdcebcb70aa6f. 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/NLG620573614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7df42c6160451f862893652447831d801bc8fe5b0bbabb11f3fa8cf6918307e. 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/NLG620573616.
Vaste Rots van mijn behoud - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a21a429662c0c0dff0ce00dcc3ca9707f5b4bad1bf1312a740cb430b674153e. 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/NLG620573617.
Er komen stromen van zegen - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fee5f7f36a4499decbefe5d42b2ce5beaad24166da25c034ba5c424b9f78c5. 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/NLG620573620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf2d7a5c42200b3f0bcc24f6e4250a8151c03e51848b8087b7b5a45d9958451. 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/NLG620573621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5172b06c2b2c2990a65b676c4f4e935e9fcfd5e6857b7a7593e32bee0e3723f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLG620573622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4936a03faaeae147461edee054e70e72f7397eeb95bd7b71dc69c3301db3ad36. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLG620573623.
Mijn Herder is de Here God - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca1ac4d0ea18f48136a7fc2274cae575b8e07d37d8e15b76249e4672cde8f4a. 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/NLG620573624.
Geef uw lot in handen van uw Vader - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b158f21cf13099a985db86619f9d0cef0276c5a176eff645992c2f8ebbc738. 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/NLG620573626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a23f0d136fbcdaea5514cccde518dcf5482f3c691e396c78ab94b3977bdbd9. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/NLG620573629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99fab002ddbb1b14f14157f0de7261ef7d1be061df9ffb88cac177e3fd613b1c. 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/NLG620573630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f0fd84ba63dd0ab47cf4488fe251d163f6f4ce56d78f99684fd1f144b288783. 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/NLG620573634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ced932f53a77f5e08786a655d91c5b0e212b5eb164dff0a1cede28f1f8e4d2. 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/NLG620573638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd141a46cc9f03626879f1f1c038d21d4721e8a88df11694f5abe264f3d3440b8. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:33:39Z), 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/NLG620573637.
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
Volle verzeek'ring, Jezus is mijn - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966490bce2456d6a3f5bc17bc3b37615149c754abe222fafd80734dd620ab230. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T15:32:40Z), 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/NLG620573645.
Hoor 't moet des herders stemme zijn - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419badde9713155a8345bd93f75cdfeade305aabeb02778980aad12f7accea8c. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/NLG620573615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98ae0e1dd5a2ee3604b41b85224a199906125788596a8e92c2bff897efccae0. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/NLG620573618.
Harp Solo: Le Desir Opus 201 - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8ab3309c8916629d3c10c2050f164585b1d420f78d5c537f1a2b9cc385a23d. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/NLG620573619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be527608a7b5afd09727d960cba3fba5b5fca99bccb0334c0bdaecfea09d846. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLG620573625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af91f19bdfc738dbe15caf1cd5631121ea4c396ebcb435f9e968b4dd1ecc520. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/NLG620573627.
O eeuw'ge Vader sterk in macht - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51af62956fca99a4095fdcd5fdda1ea346531d0408dcbf25aef88fd53420ebb1. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/NLG620573628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f3bd43705873902956865cce2f3c4da5a6f14eaffcd8dca4c680b7fa5d43f4. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/NLG620573631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9181732b10c9e613590e870684659f938ee026f7ca0ce5223173464c9a4d3e6. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/NLG620573632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ee80889433ad6885c768e507bcb0e62204cf5fdca6623b4f0689138dd965ca. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/NLG620573633.
Jezus leeft in eeuwigheid - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd10ef75c27ba178dc21bccc6c16b40eae38ac775acfe317fc513b43cd4c277. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/NLG620573635.
k Ben reizend naar die stad - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a2a5d9a809092131555875b630a726f959b73bccf20f56fb64a7c68c9b765d. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/NLG620573636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437e9e5c2b441543698c28fe8dd47ecae1f91dee172cf7608a6f9b88b9f79ae9. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/NLG620573639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb8358ae19ea329b8a1a0d4261762eb89439620efe9de57b864ea21acedc960. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/NLG620573640.
Aanschouw het lam van God - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5048cb28eb170bb63b2db7f818c789b3a91c23a4db0a46a6f7e88cbd20bbdd. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLG620573641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf014bc05f11c91d7dd8f20473dd35d3689cf65f46c46d03e8ba629cccb96378c. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/NLG620573642.
Ik zie en poort wijd open staan - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525b7f6e3735e89042b4730499179a630e3dbedf6c8fe96ab9b71c54aef40c0e. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/NLG620573643.
Heer onze God hoe heerlijk is Uw Naam - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f55dd9c89c48c8e0b04bf624c2b2eaa2e7b9b3f8e88550bb857a56b71e485c. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/NLG620573644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0e24c587de2b33c633cb9751acacac4efeefe8fa9e16394cd36482f56e0f33. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/NLG620573646.