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 0xdf84128d36bef83b5483d098ba70db11abadd5013f4510e0439b6f1b8942d5b9. 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/53ade198-e98e-483a-ac7c-007fd606c6af.json and https://artists.proofprofile.net/proofs/artist/53ade198-e98e-483a-ac7c-007fd606c6af.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 0x54701c3f50ffb4a5b96138e2994358cd0a8a1092602519c3c0635726d3745766. 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/NLA6A1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485a982f8fdaa45e45e0888292b412c56e109473837d4b07ab1d5d2c8737e1b4. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NLA6A1300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769b93dd977e84a8e5cfaf75296ac07605e282762958909d58c980d06f93d8d0. 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/NLA6A1300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485f41289be599ca14c533d1c5a470d4a3aff7501d0a413bb83b43d0d5feda30. 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/NLA6A1300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd13095eeb5454743c9f7884665e4b1d330916673e33059167a1a5a9f6b53a55. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/NLA6A1300013.
Ze Moeten Boven Even Wachten (Party Mix)
Ze Moeten Boven Even Wachten (Instrumentaal)
Ze Moeten Boven Even Wachten (Partymix instrumentaal)
Kom Allemaal Maar in Mijn Armen 2014 (Karaoke Versie)
Vaya Con Dios (Kleine Landjes, Losse Handjes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f9df4938f9ced7470b7b8152dbd744b993448a2e7dab4f701102e2ae58ce55. 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/NLRA81500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7793db657549502ba6729b19caa7da0aa952f3fd008a310272d822a014bc75b2. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:29:51Z), 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/NLRA81500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01f51818a28cc240b5f402c5cf3188262fc67ba4603595319a674a7235d86c6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NLRA81500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ba3ab16f77f1e97fecc3d1275cc503c7d5695e06421f59e9222b8c7d6571ce. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/NLRA81500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752b96b950ab461b29a5f121fdf9d7b138d2e61ce23a075b4fc9f70df8889254. 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/NLRA81500022.
Jij Moet Nu Goed Zo Met Me Doorgaan (Remix)
Jij Moet Nu Goed Zo Met Me Doorgaan - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19da133d7a82700c7b5441ea4603d1a2fe235ddc0118731f187aa2bfdce5c2cf. 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/NLRAB1500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8702ce51dbf06fe5114515bfdeb2165ce0a91107909374cf19f03f38246860eb. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/NLA6A1400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fab567695a12f42c0f776d2feff40cccd32815531b3fba44c7fdde4ae3a65a3. 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/NLRA81700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880c229fad34c0d7b8ef69d5f0141813a66fd745ce522e3a460dcbd168e98c25. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:56:41Z), 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/NLRA81700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69ff7f8355b11a055d19f1fa095905074838bc6691c582ced16b4d6674a004e. 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/NLRA81700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c07649fd03f99c4ab75cb222cfba853c80afc2dfae308ddb1b916bb562ef02. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NLRA81700019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c5771703ab4a88ce8dc09bf2b4b4fdca82766beebe05da2427201ce10b0376. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/NLRA81700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e53b7b817c2409cb00ed6ec27cd95928c0853e2786ab5d46b46a56f33d5572. 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/NLRA81700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f86064c40cd5827486b7e7a2e0ee0307919e2568e54fbecd036e2457cbf571. 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/NLRA81500026.
Zal Ik Jou OOit Nog Zien (Live In Concertgebouw) [Orkestband]
Zal Ik Jou Ooit Nog Zien (live in concertgebouw)
Mooiste Van De Klas (Live in concertgebouw)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49a51a7965d897b012b8806182073d795586cab01d2edc470de1634465d6ce7. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/NLQ271700529.
Ik Vraag Je Met Pijn In Mijn Hart (Live in concertgebouw)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf916eae735629cf4a018188f85495530cfbbf2661637cc9ca3699aefe8cb3d. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:51:44Z), 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/NLQ271700530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a866dc7aa8fd61f31b62cbd6f1c4cf66d69e2ec39e2244c88e38e3fc3afd2e6. 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/NLQ271700531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb724b091e194edbfed9ef44fd296e83d8374a881b9a425a8d6d08042cf82e2d4. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:41:16Z), 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/NLQ271700532.
Geen Zin Meer In Jouw Leugens (Live in concertgebouw)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee5b3cff94c5205f8b11b71c5c79610d040651b40f51220322a386587d62662. 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/NLQ271700534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e2ff20649281536657e00d13d2edcb6bc6ddd482051fdf2cf70be631adf118. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NLQ271800144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42131e6c46496d32f2ecfbe292a8786fa9d57a0f14d81a9a94c7de2987e9c5e. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/NLQ271800132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58abca0fd2fc76c7b268eb98600f2b90a1d3659a00086f1141ef8b60bd793db. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:49:19Z), 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/NLQ271800134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f03dda19de4e23a13dfc0b2eeaad18c520dc62674a90c41772023af4edb2f6. 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/NLQ271800136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b56c283da9ceb7e1c369bc7071436fed55273caaeeed7921f3a8a9cb34bf35. 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/NLQ271800133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c77aea30db460cb70731bcc61609a1ed2842178e5c7f5dbd59a648721395e98. 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/NLQ271800139.
Kom Jij Eens Hier (Zomermix 2019) [Orkestband]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3152d500af00f6aea61578d733f7b55fe9ffdb90b2be84e2bc0d6d786e41b81. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:12:45Z), 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/NLQ271900115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cb74c10933867d082b99717052ca11fae6901258dc334c8ec5c50fefc4fd1c. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/NLQ272000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988affa2050537742c84ff117aa70579a144b5392f624665f03df2254e0d0d6a. 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/NLQ272000042.
De Dag Die Je Nooit Vergeet (Orkestband)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a2cc5d4bce286898dc0dfea9ddcf8ecbe5dd75b2aa0c1e0f0b92417b402019. 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/NLQ272200123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ca646437eb3d27f5a4cf0147c78a4537c2a9dbd1fec08de6af88be04b03113. 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/NLQ272300183.
Ik ben net als jij (Ich bin wie du) [Orkestband]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075d7ff1e791cfbecf629f2810767452f0112c060beb960b42d7b92509912b8a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/NLQ272500035.