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 0x287ce1e644935e58cfa1040e69c9bff5a7de39da05fcb627c9e2ce6f7a7fc9e7. 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/ffb59ddc-cff3-45a3-9c38-39d83f844522.json and https://artists.proofprofile.net/proofs/artist/ffb59ddc-cff3-45a3-9c38-39d83f844522.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 0x8739fc419e74245cbd135b3ffa55ec5e140cad63e512eaa9d4a014e8c32192c5. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/NLE870940340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeca2efa19e028b1ba44b91b087d7fdfe28039941701e6d2c27a832d332afdbd. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLE870940331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac34c238771099fb6488628047ec0168742b66e3dd1cc3fa58811fc1b8cd223. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NLE870940306.
De wereld draait door - De wereld draait door
Geloof,geloof hoop en liefde (Duet met Jacques Herb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f83703bb9e8669457c551980711f3e10be19cab8150ce83e59df06d79c5f41a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NLQ271400028.
Jij Bent Niet Meer Die Man Van Toen (Remix 2014)
Jij Bent Niet Meer Die Man Van Toen - Remix 2014
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b9b82da4081aaa3ad2b2cb01d4cccb206f262258929c4686b866c233c0402b. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/NLQ271400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5cf85d2fd33d8dd40facafc6999bbbf78151db8a4ea6b45d57a2cb804cbe75. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLQ271700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe244ec33645ed02e89333ed7bd44e6b7e7c2a442b4172b732d905b05cf7f272b. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/NLQ271700404.
Studio Sterren in duet met Frank van Etten
Jou Loslaten Dat Kan Ik Niet (Orkestband)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd9eb038a6f064d0c18bcfaf3226cf017586a55c9576e781b6977f5791c6e10. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NLQ271700592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd0ccdace33c489f709eaeec62bff3d67b9bf1b06554e3deee218dbab342ec6. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/NLQ271800036.
Studio Sterren in duet met Frank van Etten Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6aad75a567755c1801c6ac9de5b5c7ff11e5e238b95216119ad01709d961c96. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NLW2R1927098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f05dc2fa5d6df2c632ddb59f942cebda604df48679cc347daaa3f35da85903. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLQ271900081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86580f177dd0c2c3d9e9ed172ee07cf50999338f76c3867f8f791d2a5ab3a80f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NLQ271900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961c0a74d50ed539d87b951c42526a773ccdc6d45163db6674e128aca154b3b8. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/NLQ271900063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f6e63fde137d4e32957f2b5f22f1fa15a12230a03453e0d33bc4d5f26f1b3a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NLQ271900059.
Kleine Jongen (voor Dustin, Jamy en Mike)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c304303f97abb6e8f7aa435d2a2b4d6806abe6bea8d7ed130a9f96acf00821d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NL2QQ2000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0d28fe2c09b9d983f4e033ecafbca791c4de11aca83f158ae98a6143812b5d. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:40:39Z), 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/NL2QQ2000093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba36f4014cb837070678ed57eb2671764521886d945ecaa26596bdb415fecd3. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:58:15Z), 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/NL2QQ2000098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b4f6003f11339a82405f4b1176230aade30db115f2d62160c2919bf0cf0be2. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:14:02Z), 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/NL2QQ2000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20969309d23c160e5fd00f0089666820aebfb54cbf4575022d5dee0059e4ebe. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/NL2QQ2000099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cebdc92d176cd05e2706b6340cb5aad53cf99269a6bdbb55062ad482872d671. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NL2QQ2000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd810d600200bf9a8c3cc9ee9a993070d1ee54d4e1bdc4ef8c810fc2f10181916. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NL2QQ2100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e081d3cb13774e8d593b8a16eaeb8087195447ee81c3efc1dbd80e7824d526. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/NLRZ82200252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4296be30b8c98e50c5c41641d58bde2249cc54b22f3dbe7ceb7bf21f5041b0d. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:59:54Z), 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/NLS242400031.
Zingen Als Mijn Vader (in AFAS Live Amsterdam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3770842396536589eae0df5718bb38793672206afc256f005aaaf581a913046. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NLS242400099.
Leef Als Een Zigeuner (in AFAS Live Amsterdam)
Je Wilde Alleen Maar Prada (in AFAS Live Amsterdam)
Jij Bent Mijn Zoon (in AFAS Live Amsterdam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2adb6faa5151f7cf2f4196d1e6f91ae04450c9887d4427c9fea523a2757c838. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:59:44Z), 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/NLS242400103.
Ik Wil Met Je Dansen (in AFAS Live Amsterdam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251cbc1cde8c1addaf17ad6ddb1c52cec4dda70ed9c24cb84e4f0ebcb7b3eea1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NLS242400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96c2924b7165493e95194fa656fdf566c301b4c46b1b6f8249d60ee4c3b1e6b. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:07:05Z), 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/NLS242400105.
Ik Sta In Lichterlaaie (in AFAS Live Amsterdam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619254c7941128780c835a07eb62abcc408862a54dca30ea42e2f1c572595f52. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/NLS242400106.
Geen Mooiere Vrouw (in AFAS Live Amsterdam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057460d8024131642976207fa282b90b73ad2a3d75457a242187b9b70e4d90b7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NLS242400107.
Islands In The Stream (in AFAS Live Amsterdam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb480427d47a4d5c4dba3e1c7725f638ca2d9115c84cca4a08cfd4b2c83dcb402. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NLS242400108.
Ik Huil (Blijf Je Dan Bij Mij) (in AFAS Live Amsterdam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38a816fd5124bcb9df517b3e8e96e44657ad6a5b8eb8bf04d914b3875e8d588. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/NLS242400109.
Oh Ja Ja Ja (Zon In Mijn Hart) (in AFAS Live Amsterdam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a8249335105004fc58b9606b32e5f49e8946aca041330ea668b251ca1593e1. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NLS242400112.
Lach, Leef, Huil & Bid (in AFAS Live Amsterdam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a47e9c472a6004573eef453a5046ba9757f587b1bc7970eb7f3a2670481add. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/NLS242400113.
Jij Bent Niet Meer Die Man Van Toen (in AFAS Live Amsterdam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4aa522bf26baea495c316ae999d3de18790565774414b08c0f60a0f89cb514. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NLS242400114.
Huisje Op Wielen (in AFAS Live Amsterdam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cfdd8158feba7353488403855b279bb42707d82c2fe978d53f103587b1c049c. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-17T00:14:03Z), 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/NLS242400116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72acaeb6194ea6c676ae6034331a20bb115a48612348a10fc48c61ff007e8b46. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NLS242400281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962f7e315bcd204724fb77ff323c410dea8965ae9bd148823430be04ed9ea320. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/NLS242500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc766ba5fea003c328700a40906f071559aa329f55e536ca331df44d76e3a345. 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/NL2QQ2000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcddf0ff103069215b61d21a7f519499d72f1c944fff82256865966a3f29e3e3c. 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/NLW2R2394835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609f650d25556fa010b9c41e836f02ed1e78531ba89e08f354ab6704d28db782. 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/NLRZ82500050.