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 0x5ab6e498699a374a8a7fbb468f9d4a8f987ab855a02883814ca125b6899ef066. 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/6ff219e9-d970-4f7f-b1c6-d2a9e2b35894.json and https://artists.proofprofile.net/proofs/artist/6ff219e9-d970-4f7f-b1c6-d2a9e2b35894.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 0xeb2bc153b6ba23093cf8a89f468b4419afcc8de6536129779eeb9a1d205002a0. Chain 2 (Bitcoin): anchored in block 957613 (2026-07-11T21:37:58Z), 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/ARZXU2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6dd88d955b7ce84f649e47c025fe5f35b44de4ef804fa4e768d475845949f6. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:56:18Z), 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/ARZXU2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89370cdfd6ff6fc6a721efe23764fba8094ff642e425c610174fc4c618db02c. 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/ARZXU2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f65b029835695a688ad2da3f48867b1d9644dd65299fdc7bb045d94a70595c. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/NL8RL2448032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78da6335bd19ec73f931d19701e2c5f1e40c2b3b9f587accd52c902decae302a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/NL8RL2448034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda877a623ddd812798ec43f6fc289bb941037416e0f913df0104837a138dd573. 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/ARZXU2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e9b5e906ac37826e25f63e7ec1e5cf5057fd3b4344bbbfd863a1299d35d17f. 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/ARZXU2400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb350096fdbe7913d612ff29c0d805872c1e8445962fa2dbec4f7fa390ae759. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:06:53Z), 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/ARZXU2400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2665e151261547f8cfc1a447a23fee1e0e8bbad645a60883de97a72ff27d301b. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/ARZXU2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbdbf6e00f37c2fdea385f92046972b9c20cdf3e18cd2c8d0676ca2d3146b12. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZMZ92407117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19098a653421825b26d64a585cac0a8d84c49edf8911abc647cfa99901e9ad1. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/ARZXU2400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131d3249112b519a5692ccf9e7859aa20c1c9f88ed75f0ff9115234f0b0bd7bc. 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/ARZXU2400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6576f08a65a160bd0dd34f068ae5b7a40d62f6cfe697782a5d4df637fcc67a29. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:07:50Z), 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/NL8RL2448035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bc3ecc7b42fc6fde520a88fa73d5833f3e9d70287895c2f17303e98730e9a0. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/NL8RL2448036.
Especial Sentimiento Nacional - Orquesta Kaluqueña - VOL 1
Especial Sentimiento Nacional - Orquesta Kaluqueña - VOL 2
Especial Sentimiento Nacional - Orquesta Kaluqueña - VOL 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e24bc0e2a731a36b304f6b9426e7778c106895ccd50063bd825a918edbd8e95. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/AR5UH2502898.
Orquesta Kaluqueña en vivo en Pasion Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x885864e8945eeeefeaa4df6706f17e1263afea476e3cab51072aef58fde78845. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:25:03Z), 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/AR5UH2503161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929d763c5f22e506e08ca4a19b8d873c1daba4018e8a48fc65366c5a30cf18b4. 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/AR5UH2503165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8aebe2d2cdac233268689cb6f719163ac40dd77f4ebd85ff3731a4b5ed1bf8. 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/AR5UH2503166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959629ba50c85a607363900ee8d161f098bcf605f6bfdda637c6ae02e5839486. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:54:51Z), 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/AR5UH2503788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82321ded468144453c7bc5c44d6483b25e4a24bccddd2fb90498d52633877234. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/AR5UH2503790.
La Rumba de la Kaluqueña ft. Mario Pereyra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54bf0cdfcd7f29daf5ef55cfb92500b25dbf3958d7cad94d76d12f3e5e1a8c8f. 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/AR5UH2504427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828f55d67beefde447ea6afd93c23f6bef0dfab4adac35b82d41643bfd548c8b. 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/AR5UH2504428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa862092883470fb396189a23357dbd76cecf6e423fd230c02410b06f29aa32. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:51:09Z), 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/AR5UH2504429.
Orquesta Kaluqueña en vivo en Pasión Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb521c116b7c7a49202ac7b80cd69c87a8369fc22b93ad190cc84d9e8c0bd41d4. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/AR5UH2504140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dbcc818ce0dea1df38c2c93fd5e29309d7239c973b8e3e09dd648ace71eabfb. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/AR5UH2504142.