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 0x05cb71e26e3626806d9fa6eadad3e801bc743eebcfe2f4ce15415e382d3faf3c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e91b1281-3d14-4d94-96ac-f4c26cefc154.json and https://artists.proofprofile.net/proofs/artist/e91b1281-3d14-4d94-96ac-f4c26cefc154.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 0x5aed969353b3de2828006bbdbfafe45157d6da4f1d4e75e5e4f6775337c2800d. 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/NLA200400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692dd43f232f5615c5ed5b619ce2e676f1e1b6dba72a3f578f139ff8c8392aaf. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/NLA200400071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48da02ba1c96587bdd758a3d509e4210dec4be635f193711d9ac86d211f39a8b. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/NLA200400092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c87843cd6ed360b613399502e58dce42c9adf413a9b33a258e66fb29e99ddf9. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/NLA200400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e00a9c50704e65e28f15753ff305ece8d3095efbcb0da503c1f356c4219f057. 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/NLA200400235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ea35305a0a375d82b1e95215e48aa3961a35f72a5ee2c1ded2f3266e877467. 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/NLP760600365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d79cae51522027580c7408f8dcb1e917842f265a7ce2e46a8c183a6fd6d5b8. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/NLP760500192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc2e4ea22be0d6f9f9f673d57a9f53cd72aa9da532777fc71e6b14911c8c68b. 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/NLHR60900019.
Ik Wacht Hier Op Jou (feat. Tango Tinto)
Drie Kleine Kleutertjes En Een Dappere Dodo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11e003ceed278e8858973a00625f5b2854ba49eeb4725bdc759cc263550b56e. 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/NLC2R1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21832d782706611460689e43f590ec14954cdd4fa40afd487c1556a45c61cf8. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:51:37Z), 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/NLC2R1400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b89625b4cdb26a6f514873e5d4ef316596eded19ee3c289083acf720a8bbd48. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/NLC2R1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf632c3111426c32e7ece4c5f408044ddecf9a990e11dfd8789f474990e001b5e. 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/NLC2R1400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96bb1f7bd984243e7aef0a682f04f1e6b1ccaa66a037fd0ea4375fb03ab73a1f. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/NLC2R1400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24dd3fa9534940e00663bdcdc8425e38feb5373624e9d70df29321118d0257d. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/NLC2R1400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a78d573e740e9e9525c8073adb97b08f6ebeb9ec9835a98150ef5656f2083e8. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T05:38:27Z), 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/NLC2R1400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed206797af22035f8ed341cadb875982324640bc316f9bf654c385a5815b913e. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/NLC2R1400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff233ed85be0c99dddcb2f2bc608246f3a167d456ae19ac5099c7e34a6d5a6f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC2R1400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75b6c478c9257cbf2cf1396937cf024247c7701d55ade450ecc381223cccc01. 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/NLC2R1400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844efdd58c193654012249b69fa6d3e4912c913e609674cc1e989d8aa1ac0a8f. 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/NLC2R1400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3343a1d1b0a26d11cc52a7a349f0a11ca22cfd5cc888d0a57b367181c494fb73. 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/NLC2R1400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3950004ffa9129a57869c38c7794057e258dd952aa90510f9c61c9ac64873a59. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/TCABW1462746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2cff6c1fb6a2f59a93cd17a15965e6a8e86e0a35375a36dee31117e2ff21a60. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/NLK071700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e82c900dfe4a5f981c97e9cefe6a7a4a28b2a4eda7288887de38482fe867ce3. 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/NLK071700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace4c2120fb4b9836d4da6e80e42ba00fdc14b55883734d7e03eb93b8288efc7. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/NLK071700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb583d4f2c7cff714e2e181011d5968c19ed016799cddc31522673e06f4502d6f. 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/NLK071700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0a714018de75eb4abbb8471d84710300e889aac6c509d5b37b08bd738a49c4. 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/NLK071700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21cb6e179f1441536549abb2a03dd4eb62a5fe82b248a364f84a5f064f6e5502. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/NLK071700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6da3caa10628d6ef0311d011a0b71332c89ffb1ac8ff532e3276d2c8cca7fa. 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/NLU9A1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ed1ae115eb90ba3c3d288881404bd44fef42a3e4415ddeee5c848400f75a5f. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:01:46Z), 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/NLH172200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557297673915c7a121ac164e6b5b05de3e85e268d72a80e01f5492fa6030fbc3. 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/NLD3G2300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72546357f1a9e030a77bdb10081ebd10d085cceb3770d34ed7b0531a2d9875c1. 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/USRE50200231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ee8b8b8022bdfa933a097a4171cc14d83e8a4cd2f33ea9818921dba122d49d. 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/USRE50201331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782bd91b80691e744432e2aa688bcd9f59dfc13dcafe24f8117f658c26284665. 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/NLG661900977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d40a972ba5f44ad1e5a79fdfbed98a26dcd9da7ba52fffa5b4a24728b50c9a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NLS241103110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e1169e2df6f570566a4de679300e959c43d9331135328c43b5443c267b7bb2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBEQT0800713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd10af5d200057b279c98540047c8db40cedceffe853e8d248094a26e8e05af1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLF711608273.
Lounge Top 100 (The Ultimate Lounge Experience - In The Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d40a972ba5f44ad1e5a79fdfbed98a26dcd9da7ba52fffa5b4a24728b50c9a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLS241103110.