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 0x0373fcadba7161658cee6f945dde93e3996b48b7363a1f2aaaa5f951bed03521. 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/67a2f2e2-c5fe-4e46-8a30-eb84db65af34.json and https://artists.proofprofile.net/proofs/artist/67a2f2e2-c5fe-4e46-8a30-eb84db65af34.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sinterklaas Kapoentje/ Sinterklaasje Bonne Bonne Bonne
{"copyright_id":"0xca21ce9a6e5b889d86b8cdbbc7060326680d5ee803a1d118fefc9ea797c58a3e","isrc":"NLM381300003","name":"Sinterklaas Kapoentje/ Sinterklaasje Bonne Bonne Bonne","registered_at":"2026-06-21T06:02:06Z","spotify_id":"6O4BCFnCh1h8F6a7ol9HEn","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca21ce9a6e5b889d86b8cdbbc7060326680d5ee803a1d118fefc9ea797c58a3e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6O4BCFnCh1h8F6a7ol9HEn.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6O4BCFnCh1h8F6a7ol9HEn.
{"copyright_id":"0xc509c4bd8c863c9148a351b46730571d30f0cb61fbed1f8fd019285eecb2580d","isrc":"NLM381300004","name":"Hoor de wind waait door de bomen","registered_at":"2026-06-20T08:38:09Z","spotify_id":"0dNlWpBhUlvHj4x8sVuKNM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc509c4bd8c863c9148a351b46730571d30f0cb61fbed1f8fd019285eecb2580d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0dNlWpBhUlvHj4x8sVuKNM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0dNlWpBhUlvHj4x8sVuKNM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bf5b557ec9ec1c2da18bfb08c5ef8aa98fa072fbecf660a723d9ae2e6015ab. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7vuFzjsLPjCfS1HZGA1Cp7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7vuFzjsLPjCfS1HZGA1Cp7.
{"copyright_id":"0xab139e9d270b117ab6d2b21728bc6b4e5030c3d2cbc144f967a72989f41ab88a","isrc":"NLM381300006","name":"Zie de maan schijnt door de bomen","registered_at":"2026-06-21T06:03:30Z","spotify_id":"5U5bIAdTMDBcIxN38Xg8DP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab139e9d270b117ab6d2b21728bc6b4e5030c3d2cbc144f967a72989f41ab88a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5U5bIAdTMDBcIxN38Xg8DP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5U5bIAdTMDBcIxN38Xg8DP.
{"copyright_id":"0x2f7290f8cf5572af8afcf19ce4235634cf2d5ca262d3f16f6e43c4f787ef4938","isrc":"NLM381300007","name":"Oh kom maar eens kijken","registered_at":"2026-06-21T05:58:02Z","spotify_id":"1BsiECiAEHpd6HeNV7Ox2T","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7290f8cf5572af8afcf19ce4235634cf2d5ca262d3f16f6e43c4f787ef4938. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1BsiECiAEHpd6HeNV7Ox2T.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1BsiECiAEHpd6HeNV7Ox2T.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77999da59f260485d72fd8f81b1d13f351054f11e9bc2c91284c262af9d9af5e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/00jHI5yKbuZwxcfvK8YrVJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/00jHI5yKbuZwxcfvK8YrVJ.
{"copyright_id":"0x2bef54889634b6beb39281dd4a25e92ed37d51ed8c6dcf8e136421051e316c3e","isrc":"NLM380900003","name":"Woezel en Pip themalied","registered_at":"2026-06-06T11:37:17Z","spotify_id":"2eJeKfgwi0gZJm536wgWrE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bef54889634b6beb39281dd4a25e92ed37d51ed8c6dcf8e136421051e316c3e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2eJeKfgwi0gZJm536wgWrE.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2eJeKfgwi0gZJm536wgWrE.
Woezel en Pip Themalied - Hoorspel versie
Woezel En Pip (Hoorspel Versie) - Reprise
{"copyright_id":"0x2bef54889634b6beb39281dd4a25e92ed37d51ed8c6dcf8e136421051e316c3e","isrc":"NLM380900003","name":"Woezel en Pip themalied","registered_at":"2026-06-06T11:37:17Z","spotify_id":"2Bz6W9DE7wzgIiuvkvQN7m","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bef54889634b6beb39281dd4a25e92ed37d51ed8c6dcf8e136421051e316c3e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2Bz6W9DE7wzgIiuvkvQN7m.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Bz6W9DE7wzgIiuvkvQN7m.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e287e6f8599c62b69c019015037b88e44fe84a3eed09d1e7490f56bca44d126. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4sY42wmcp5hMftCtWfQLb9.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4sY42wmcp5hMftCtWfQLb9.
{"copyright_id":"0xdab4fced8e558bc5919214d5daf7668d617dc325ab62352d04c395405dd6e2e7","isrc":"NLM381200012","name":"Ik zie, ik zie, wat jij niet ziet","registered_at":"2026-06-05T05:27:57Z","spotify_id":"2R9xZIXaCMvevxSLwBPWb1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab4fced8e558bc5919214d5daf7668d617dc325ab62352d04c395405dd6e2e7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2R9xZIXaCMvevxSLwBPWb1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2R9xZIXaCMvevxSLwBPWb1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc559d790984b07a841fcee655aaf095cdc938b3cea72d2311c15d6ea974f1a76. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6SVQrqF2UIOnVxQSdO9BeY.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6SVQrqF2UIOnVxQSdO9BeY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d5f995d2a61627ddba8a5b2cb65025f0832747d8de077f80fb04ff85cae07a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3juvS8UOxhK8wTh0Uuc6oN.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3juvS8UOxhK8wTh0Uuc6oN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7a4d489bff87e80833a3a07b7ff96b7037cbd90f86820688299d01a4844a3f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/73HLp3ShfdwnDZlPJSlbad.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/73HLp3ShfdwnDZlPJSlbad.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536e0b98061adafe1ca261f626d53317909e846c7fcf582bfce58be75eca1a62. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5tYCZvIBSiDei5Qw2WHDVQ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5tYCZvIBSiDei5Qw2WHDVQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ad97f6dcec59eb9bdced67bb3e5ce01d9e1e221a3623bfdd9814c0f8945c86. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/131FtdFep58yLVUDO5nShK.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/131FtdFep58yLVUDO5nShK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96322d2c7ba4e04a816dd37f30ae4f4ce378d142e881cc562764189f714e1e78. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3caOn6MpMv6VnFgQ60pXjV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3caOn6MpMv6VnFgQ60pXjV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bef54889634b6beb39281dd4a25e92ed37d51ed8c6dcf8e136421051e316c3e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/36sqblxGYa0X1up5wBsq33.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/36sqblxGYa0X1up5wBsq33.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e6009bda57458befdf4b187396728a5cc36558d698c6614e5c6602c83bab84. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/72cHvKCdG3bv26cIPo1sFp.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/72cHvKCdG3bv26cIPo1sFp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2344c4f2777a142612ec64ce121c6b645767a51193137503576cb2e7c2134db1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2zGeEt8d92LgUcRjWX93zb.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2zGeEt8d92LgUcRjWX93zb.
{"copyright_id":"0xc4ebaa96f70edc15993813154741a21ccdc4199605b55f9ec67247bb1706dbad","isrc":"NLM381200003","name":"Wij zijn de Tulpjes","registered_at":"2026-06-09T18:30:24Z","spotify_id":"0qNyurACDlVrvPBLadXFEO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ebaa96f70edc15993813154741a21ccdc4199605b55f9ec67247bb1706dbad. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0qNyurACDlVrvPBLadXFEO.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0qNyurACDlVrvPBLadXFEO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf485feff982794627029ac7b30d779cd646ba837f7124b4902e5fe4888c4469f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5saEeX3nbBdpxiM1b85mxq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5saEeX3nbBdpxiM1b85mxq.
{"copyright_id":"0xe22fe8c22be71cafac2f5b5c977a9121bad7da5c54c13f9ec925b0855b5745a7","isrc":"NLM381200005","name":"Ik hou van jou","registered_at":"2026-06-09T18:26:31Z","spotify_id":"5LPaiHMfAm9sVOs36Q46MU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22fe8c22be71cafac2f5b5c977a9121bad7da5c54c13f9ec925b0855b5745a7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5LPaiHMfAm9sVOs36Q46MU.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5LPaiHMfAm9sVOs36Q46MU.
{"copyright_id":"0x5938f2b2d17bcdfd4a3bf182cd4f657481186d16899c8f06a71e6ded5479b2b3","isrc":"NLM381200006","name":"Later als ik groot ben","registered_at":"2026-06-08T04:23:18Z","spotify_id":"12VA1ekOUhyh2NRBW1tdZi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5938f2b2d17bcdfd4a3bf182cd4f657481186d16899c8f06a71e6ded5479b2b3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/12VA1ekOUhyh2NRBW1tdZi.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/12VA1ekOUhyh2NRBW1tdZi.
{"copyright_id":"0xd324da3637b61fdf73f0871cb4a36dd03af9fbcbfd981b3eb3c0571fceb6ab42","isrc":"NLM381200007","name":"Wat zou je dan doen? - Het Piratenlied","registered_at":"2026-06-08T04:24:45Z","spotify_id":"5zMEHE2eOOaCo3Uc2NanCO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd324da3637b61fdf73f0871cb4a36dd03af9fbcbfd981b3eb3c0571fceb6ab42. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5zMEHE2eOOaCo3Uc2NanCO.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5zMEHE2eOOaCo3Uc2NanCO.
{"copyright_id":"0x8d6f56ddec5df1dfedefb87d144807e6b38bc292c83a8b31a33b4ea04ea1e501","isrc":"NLM381200008","name":"Woezel is boos","registered_at":"2026-06-09T18:28:01Z","spotify_id":"7uP8lxzwiytNXjSZfUSTuY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6f56ddec5df1dfedefb87d144807e6b38bc292c83a8b31a33b4ea04ea1e501. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7uP8lxzwiytNXjSZfUSTuY.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7uP8lxzwiytNXjSZfUSTuY.
{"copyright_id":"0xaddb820ca093158bbae9f8f262607c7edc7095cf3e384e24586c2f74c56f96a4","isrc":"NLM381200009","name":"Allerbeste vriendjes","registered_at":"2026-06-05T13:12:38Z","spotify_id":"3E3yo8OIjCr0uzudz1h50c","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddb820ca093158bbae9f8f262607c7edc7095cf3e384e24586c2f74c56f96a4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3E3yo8OIjCr0uzudz1h50c.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3E3yo8OIjCr0uzudz1h50c.
Sinterklaas Kapoentje / Sinterklaasje Bonne Bonne Bonne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c594ba870dd7c414657249f45b71d1564f432acf98929806e42887aa1040c6e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6oarVTe57vLKz6IOE8rk9t.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6oarVTe57vLKz6IOE8rk9t.
Woezel & Pip themalied (Overal Vriendjes Remix)
Woezel & Pip themalied - Overal Vriendjes Remix
{"copyright_id":"0x002522ff3710160d2155e0e7870de7e3fe9dd2611db54faccc88275483811e6d","isrc":"NLM381700001","name":"Woezel & Pip themalied - Overal Vriendjes Remix","registered_at":"2026-06-10T21:58:32Z","spotify_id":"3FaWX3dPHB6lBgzALy80fn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002522ff3710160d2155e0e7870de7e3fe9dd2611db54faccc88275483811e6d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3FaWX3dPHB6lBgzALy80fn.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3FaWX3dPHB6lBgzALy80fn.
Woezel & Pip Themalied (Overal Vriendjes remix)
Woezel & Pip Themalied - Overal Vriendjes remix
{"copyright_id":"0x2bef54889634b6beb39281dd4a25e92ed37d51ed8c6dcf8e136421051e316c3e","isrc":"NLM380900003","name":"Woezel en Pip themalied","registered_at":"2026-06-06T11:37:17Z","spotify_id":"5qP2uypJbKd8AEkxBYFzYB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bef54889634b6beb39281dd4a25e92ed37d51ed8c6dcf8e136421051e316c3e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5qP2uypJbKd8AEkxBYFzYB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5qP2uypJbKd8AEkxBYFzYB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eebd0e6627d829e255b6d74740590f42849389fba2f62536a25553cd6d4b64f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0AGJ7LZupYJuEOpDYftwau.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0AGJ7LZupYJuEOpDYftwau.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc1055c4cd60365f84a881a8c07d01e6ba0ff1c41f31d83b9254d803fd8e7a2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2onhmqFkaoxJI79PMvJ7TS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2onhmqFkaoxJI79PMvJ7TS.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270eaf3c882e4a384bc3ac5a9661aef53d3a0e454e0a0edebe59579b0d0177e6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2epP4Fn1kt6svgIhbROP3Q.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2epP4Fn1kt6svgIhbROP3Q.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c28e5b7345d75a9a470af36d5b4c7e7327c1b64cc5229c5ea0eba47156a7baf. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3tcyPlkvWipN0apV8o2tld.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3tcyPlkvWipN0apV8o2tld.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b40f64c30e0ab9d5cbc90244d358d85f85cbb1a4a8f23a1175b422e5e232eb7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4VpskbKOHD6R58d3AMmWMr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4VpskbKOHD6R58d3AMmWMr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e43cb48c567a073b2d51435190071e2d8b7e3e9403a1c16b8f1392b20a0be7d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1Pu69AncAr8wKjv9SVObXr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1Pu69AncAr8wKjv9SVObXr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5749ffc0fa126c677a68c8f8f63b64aa8a3e6e17b73f608999ba16944418142. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/50ZwD5A9tCypy6Sulap8Iz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/50ZwD5A9tCypy6Sulap8Iz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2022454e5e8157a462905a64705470215453cd5daf9d3fc95460b8a4135faabf. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/32eOh9MKyj9zOOnbLpLtFG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/32eOh9MKyj9zOOnbLpLtFG.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeefaeb514bc05ce0798764e6da9040e7c5d8cde4bb8f972d46378b57110486f2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1X3eCaoD6GLpHVBoCqLS2X.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1X3eCaoD6GLpHVBoCqLS2X.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dda737305c3160aebf8dbfebff64569e22eafe9b7cb8d4c4c13825b5b62f2a7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2cilD8Pl8FHWd16kJKjGHy.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2cilD8Pl8FHWd16kJKjGHy.
Op zoek naar de Sloddervos! (Voorleesverhalen)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddb820ca093158bbae9f8f262607c7edc7095cf3e384e24586c2f74c56f96a4. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6U4N2PJfSMRaUvuJNw2cwZ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6U4N2PJfSMRaUvuJNw2cwZ.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bef54889634b6beb39281dd4a25e92ed37d51ed8c6dcf8e136421051e316c3e. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2aCzgsuGPAWE0H1E8iDAAc.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2aCzgsuGPAWE0H1E8iDAAc.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dda737305c3160aebf8dbfebff64569e22eafe9b7cb8d4c4c13825b5b62f2a7. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2bWZW8cSVXSaisx7s64FTq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2bWZW8cSVXSaisx7s64FTq.