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 0x5efd7838e4d00e91c40acdd7ce3363558051f73d6505d7dfb83cfb0b2dfb188b. 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/3f3cb1a0-5a13-4ac5-8f32-a23657dbc964.json and https://artists.proofprofile.net/proofs/artist/3f3cb1a0-5a13-4ac5-8f32-a23657dbc964.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 0xdb1fec6fc0e994ed566cea7d91a709681fbc2543a2c68fd78bec94855df6fe88. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/NLDP50800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc23e1cbaf9b24d606cf247c713feb33f98575d076379a1a050c82ce2053517. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/NLDP50800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8590777115f5bc606dee1a6baf110b78155e9706d3e8c4d5686702c8675b6155. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:30:36Z), 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/NLB860700117.
Een vrolijk liedje (Viva la Vida) - Een vrolijk liedje (Viva la Vida)
Een vrolijk liedje (orkest-karaokeband) - Een vrolijk liedje (orkest-karaokeband)
Verliefd zijn op jou is nooit moeilijk voor me geweest
Je bent de knapste,de mooiste en zo spontaan
In deze liefdesnacht (duet met Liesbeth)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934a04eee0492058fb3eb7cd6f20e025883108285d05a8c65be654e2d84a1954. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:23:00Z), 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/NLQ901000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ef871594f3716f63831ecb1b5ed37d1b4a4b940a4e660b017a31b5190de0fb. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:24:05Z), 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/NLQ901000046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa919cc0ba6bf5eda8471a27d661c03b3b1eb79affd66ed90d6003b573df6ad24. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/NLQ901000048.
Kleine leugenaar / Ik heb maling aan wat mensen zeggen
Je bent de knapste,de mooiste, en zo spontaan (orkestband)
Je bent de knapste,de mooiste, en zo spontaan - Orkestband
Als een hemel zonder sterrenlicht - Edit
Als een hemel zonder sterrenlicht (Radio-editie)
Als een hemel zonder sterrenlicht (Origineel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678f42fa0fbd9b513251e6e537120edc00ecfbdd3c8384781e6fac3d5ce9180c. 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/NLE871280001.
Als Een Hemel Zonder Sterrenlicht (Kerst)
Als Een Hemel Zonder Sterrenlicht - Kerst
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14aa4f5e672b2f379dba66c566ddc0208637cb4c64c77f76c86fa6cc3ef9dd41. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/NLE871254401.
Als Je Alles Hebt (Dan Kun Je Veel Verliezen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2c0c3ce16578690faf05c6bf01caadc5ac935f63a6aeb46b67452d5e4aaeec. 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/NLE871257806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ab6b008f8a57bdba80f2093406c5fa67702c1aaa4162ab59ee07a8cf0e8d52. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/NLE871410101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33e1ecefda618f413bd6206f3b08bdcf631705df1de5c31a1f7adaadb31e76a. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/NLE871422001.
Jij Krijgt Die Lach Niet Van Mijn Gezicht
Jij Krijgt Die Lach Niet Van Mijn Gezicht (Party Mix)
Jij Krijgt Die Lach Niet Van Mijn Gezicht - Party Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4883634c80b28d35e2ee637152bc49445c52b28892ce2dfdecefd94b8f6fb052. 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/NLE871515402.
Jij Krijgt Die Lach Niet Van Mijn Gezicht (PSV Versie)
Jij Krijgt Die Lach Niet Van Mijn Gezicht (DJ Maurice Remix)
Jij Krijgt Die Lach Niet Van Mijn Gezicht - DJ Maurice Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d1edd539c3f864ee15dc59749a49c5b7dbf9fe319aa52e55d2e7ca5fa53377. 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/NLE871617201.
Jij Krijgt Die Lach Niet Van Mijn Gezicht (Oranje Versie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a9682a19ccfbd1f882e21879da56bd6a5a28f41ac06c3950e0ee6680290b5f. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/NLE871719901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6147890785fa73674014eb5d4d1222ae4c925d41556f3cba9bb1021d89656b24. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/NLE871719902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6271c99b42bd8d1b67479f5b78616683f8541cc470af5bb52945b35358ca9eef. 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/NLE871719906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938b9c9650ed96226306424f4d1097335321acc5d7cacd1de61f05c8715f81f2. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:04:05Z), 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/NLDP50800001.
Jij Krijgt Die Lach Niet Van Mijn Gezicht - PSV Versie
Laat Het Licht Maar Uit (We Doen Het In Het Donker)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872d397b76db992e31f365a6f746afcf4315354cb83001f5675395308c7723be. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/NLQ7J1900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28894b83bbfb55b61dd83f6f78178dc7f932232da8851da228321d2a5fd0220. 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/NL1TJ2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7fdf86ad6a77ebf4a2616ab30c985e1c0281e4c6c8256342d33c122187f951e. 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/NLDP50810014.
Kerst Wordt Altijd Weer Gevierd - PSV-Versie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6686fc79b1f0d0100eaa28f6e49487a9ba76e14227fe1c394251bdde2ced663. 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/NLE872147101.