Franciscus Johannes Maria (Frank) Boeijen (born 27 November 1957 in Nijmegen) is a Dutch singer and guitarist. His best known songs are "Kronenburg Park (Ga die Wereld Uit)", about a sex worker; "Zwar
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 0xfb068c15f4578a9c46ba4fea1feb4e1748ab368cb9b52ae41a947e4b4cb628be. 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/69509feb-5976-4cbf-9043-3a4f839d419b.json and https://artists.proofprofile.net/proofs/artist/69509feb-5976-4cbf-9043-3a4f839d419b.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 → 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 0x5f96d006a09fe0a637cb1ebc2a6d5a95c768fc25b8f9ca5ee0abdfae82b897e5. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:03:28Z), 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/NLA200200225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfacd7daede66daebd22721a2703a66aebf2df9f67182c5c008e2b239d792052. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/NLA200200198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43938e99e89b37160223fab2a62cd13b693de0052b9404f672a6cf14f8039e6f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/NLA200200218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8e27a41dcd9bbd5e96cc16bb4f3275cf537ca080df56e69145a92c1cb72bdd. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/NLA200200268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8279108f6314cc4f08f150776e6cb1a141b736587c406914bea49f742440abab. 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/NLA200200309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd944001b6504204c48ae8dd4c28de721666e9ed5943a5ce03834bdf684461b0e. 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/NLA200200233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc8663e17f6251183a20b55144e1e3d3938605fc2db76999be023cf04b8188c. 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/NLD019702056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04773392d24bbe794e786b280a4dd00d6da4dd8190107a6909139852a0752e8a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/NLA200200294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8dcd4cc6ff104f856dea0fc9ba3905fdc546b42e8ae786ac4bc5c1a21b7729e. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/NLA200200209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ca2dad628d4a0a688e924b9e9148d8f3cfb7761cd66d08b064ae1ec21c8c45. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/NLA200200336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad43e8b6be0605f0f507ddd1e9248d8f83e5d819f9c0915447cbe252a0358b37. 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/NLA200200188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4ccd4decf18e342296e4a179d9ce27eba2ee7eb3ea0d3441eb9656c05471de. 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/NLA200200186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b35eb177fb56ffdde23728809966601814e661662cb4c86e67d639663db437a. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/NLA200200205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869337a077ea7ee72df7ef099659a4b46ab7ae55c10fe3026584192c4c4c555a. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/NLA200200195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30a14cf843afe90ce027307fe8ffa5765aa24c498fb388716cea9ad7a91366f. 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/NLA200200299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5ab135f3614b3d5e8a9732d87832a69423390713803508c76619e937576a81. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLA200200239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d053e1f76e214a1c3c592f41f59a43f92a47258e2e89a3f0705e9a106f873c3. 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/NLA200200315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca4c5ba011c72600413841f69af77381a6360c2ea6c328a174156842b62e3f6. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/NLA200200216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe296ad5c8ee18ec3398554c8926715e14e1e3be31b921f1dd4241e4e2c134028. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/NLA200200318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44d208076955288be0432d95e372e33ec2f9272eedb89840efb863f515d2f92. 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/NLA200200224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fdf45f032b76cf06680e79dd9251c4c00d608e9edaa6fe3e975444fd5d5c63. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLA200200191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a74e07159c9409d5bc4310adfcc1f8b5e5a8d3b486e50e0ffcb6ab31a300f0. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:20:47Z), 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/NLA200200303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb47c87cd0b6eda79ea79f8d520abeeb9daa9d483effd2c1d3a29c09855a985. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/NLA200200199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a539948afaf7bb16156bef87f852f0cf78a2795fd0fbbca2c8cb1c8a6cab41f. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/NLA200400175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9e8e8334f852b92e8e38b0986907f67a5cbc04624e79b1b55aeacc0656a30b. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/NLA200200237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e586525540a8f236be54217fd7cba542e0bf1a84b9ff6bcf12483282ff4b5db. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:09:18Z), 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/NLA200200300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c3787137accc421446b7e8851e8fdbd42da1a1438cae64c3442c54bb315113. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:59:10Z), 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/NLA200200256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09782e3ef6b65c8f0150976a07c2bb20d186daac38937164e62dfb60a80869d2. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NLA200200189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5ab135f3614b3d5e8a9732d87832a69423390713803508c76619e937576a81. 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/NLA200200239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919145a5cab0e9a2938b2360b7d15d6f0d42a0e6d2d58f755957ab68f9f5be0e. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:22:11Z), 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/NLC240100209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6e0de36c94e1eecc3467c511193f52eaaadcae157c8e4a1e34d8fdd8601265. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NLC240100214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b7ccf88d6d8a471131a4894a27aee0116ff920fe62308c6ac67a5ecdf9d158. 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/NLC240100217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbfed2cc51e49aa335a4ae4b83d864a74fca497a494940b1d0c65dc6426351c. 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/NLC240300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c67d67a1a2fe6c8b65c4ba77094f415791db05a5df1ce3b762c2eae37f0c54. 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/NLC240400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c1ed0a4c06e391a54735c133213c27f9ade5195de8462455f7b7ae21a15acd. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/NLC240400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d20c7073d743bc36937c3c4ceb6b7bfa8a93e66c5da3bbecadad1b972f75dde. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/NLC240400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca40024930442ca86b27c04ad3d07c8e419a564c55cfca460e39ed2555ce49e1. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/NLC240400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc293545c1b0fbdd64b0366d477fa92e090d8c71ff4429484f65ea04ce0411511. 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/NLC240400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6733f2f692252678cd3963f2c320b4cfd9d6d844c7f34e53041ab682cb642b. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:43:26Z), 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/NLC240400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed34e4bca4cbb81fec7562607c80462810d3d6f864f1582400a4ff827d39183. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/NLC240400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805c26c1cbdd4e296205c115de112731eea0ef49069579966f22449198956462. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NLC240400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804acdedf2881c2e50bf28c5c763d828f95dfb24efc9da10bc3ada82da8e118d. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/NLC240400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585d35fe4ceb4697d9405678d60569fa9ad30dbc010302ea2c4da993b25aa90d. 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/NLC240400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ed88e084fcd6416dad2ee1ece7f294f76ac0a249c046ae2243003fcb7a7475. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/NLC240400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5cd683ec931b950a2e99623ac33929f599ea2ce0c2dd7c5f94c7f7e1f46046. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/NLC240400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf518074ca46977266abe0153274a1c605b41a84262435f9ab9132928387c0a4b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/NLA200200467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe337033142e336f38a186493f76808d29d9277ead9553a52de881e7244a4121. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/NLA200200291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa549324a9baf7a1b807217f30fc8af53125acae761846c70cfe643e2430acea3. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:54:27Z), 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/NLA200200273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0af4a5beb519b5987d1137a74e8d4d122869bc9de710fa318fb373df8a64f38. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/NLA200400176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48bcfb3f8839ffb1108b05376da3c8fab0b2ede19d9bba88dc16e80d34613ef. 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/NLD019702064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa787622e09e152e1984ce4be4f594921440b5f71a6b8038e0e195c1c3bb36d. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/NLA200200310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2732fe7bc5c8947016342c8fe20a579421db46d6d8394d3239fd6dceeb9d045. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/NLA200200210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe922b83c87c4a3bc73925506137a3dd8a083e40d91a4c959e407ed586ae59e3e. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:03:58Z), 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/NLA200200321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bcb99d729f9c9dde8e6eb8380fcc3ccd93efe71a17d9a2a61e724363b62783. 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/NLA200400174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639882094625ca98efba0acfb910a3d7e05c7398a6560d852aae4cea5da49b02. 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/NLA200200250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338c6101363026b7a405758a94dfdcce97082121cb586c49e685839f86bc4b12. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NLA200200396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e0078539052c5989257ae7c6eee839b379a0942305c2c2ced59ec59a6d509f. 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/NLC240600086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac78b24892be3d3d51147df83fd29725dbf41c5e4e713b09725ff608c8d23054. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T19:28:52Z), 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/NLC240600088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29656eeb5288d3a76f36436ca12f990e00a3c5e614ee0af071b10c448e493732. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/NLC240900114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc659c44f4a14c9ac811dd4acefe783859c6d0d541d1188615d8153d42e43c2. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T16:03:54Z), 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/NLUM71500586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc8663e17f6251183a20b55144e1e3d3938605fc2db76999be023cf04b8188c. 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/NLD019702056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec116904fe82bac69cedf41de77aa75bb23a3d5ae85ba14ef7f89fedc175766. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:06:31Z), 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/NLD019808001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88fb705fc5412b744ec47993e4966ce0985ed4e4320afb99952aa7d764129f6. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/NLB5D1800111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3df8bf879460d34efa0d6fc3a53c33e30cc033853cb4b31d6c6339158ff758. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NLB5D2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3fa76223f0413a2a9578b469267fbc3d0ecee26cf584e758250711f5756e39. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/NLB5D2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7062013790bc5f7ef41fb1523ff0e01c120fa955de51fc5a5e5e27b88060c37. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T05:53:22Z), 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/NLB5D2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413fb77a88d8a125379d883dcc8f102330b78f4ff0a6fd07e0f02f106523e4d5. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/NLB5D2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5b0500a4dabde30a093b976ea0308268884b963995fc9d7b70173e67fde290. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/NLB5D2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92d224435bd238e37b31d053d8f6f3783b5c59044e97adfc467f0c917f07d2a. 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/NLB5D2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3097d5a6be02cccd47fbe80945d60d8dbd5fc110cfaa5bb6f2a0a496ab28e2. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/NLB5D2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04437dd144439c6199effa7385d2c7b88c2d0607ace790a3ac10f11e271b54b4. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:43:40Z), 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/NLB5D2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f48514161a970c98dd0ebf23fd9edc6780e49281b8a90c4dad21800274750ab. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/NLB5D2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a6bce50a6a5571ba771847e7713a3979c5500d847284c8b0165dd1239b6850. 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/NLB5D2020102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f38c4b39e8c430d61cbeb827fe7de10d090423df79840c3d02dbc94ab4f3f9. 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/NLB5D2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6431d538f371deaeb06f52a69deae10e3bc3c01bf48c4abae34b5d6c1eab8bc2. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/NLB5D2100010.
Stormvogels (Live 1990-1995) [Special Edition]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eed3abceea122851b66a332f9b6ba4f27bc6eaa77414827d54674a6bf68c720. 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/NLW6E2300014.
Een Echte Man (De Originele Song Uit De Film "Mannenharten 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79578602cbf54dae91d384d51c143ca85c251526e6f151b9af3719522ed5cbed. 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/NLG661500473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c84477f6ffcc72f105d67b0a1a93757010f2a34b0823b523e4df8fc8c3ee67a. 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/NLW6E2400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea0cee8fa9a5ecfdcce81b9c0a3be9ea1f5b589126dfd9afb57b049fc8ec60a. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/NLG661500476.
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