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 0x63ec638557965859f4c515703cdab633ecb794dc624235fc9f323daf6a732d3d. 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/e5460ba6-26a0-4ef1-b204-83f3393042f6.json and https://artists.proofprofile.net/proofs/artist/e5460ba6-26a0-4ef1-b204-83f3393042f6.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 0x6000a290f9890b9e0b7d3f461319224ccf168b762037909b622ef6766baaae6d. 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/USHM90476855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f6c74d0acfdbd09ff7e62f945baca7a2bc5152b4616c8ab84b7e0443cb69b4. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USHM90476858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87528aef356ffd7b46e1cabede2b784771a2a0345fd52ac1e9ec8b8689492393. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:07:29Z), 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/USHM90476860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6372a0a636bc7e04089316ba8af1974346bea16f9c213dfd48b9872cdc3830. 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/USCGH0743445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cba9884c588885dc784091f40d2843f10ca411049c55b83e4e9699913335f3. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/USCGH0743448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5130f64c40e72430e2110f948978189e6b31d264fe86effc8b05544d3d6fd1a3. 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/USCGH0743452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4b51ad0f5a636027d7e5f92ceb40727eb3a63a499b594f82b147a43b35e618. 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/USCGH0743455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366f037bad2c13e963056061015f9bdf32b1ca4e71358c400f5bc8d514025b1e. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:51:23Z), 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/USCGH0743458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126569471b8435de3fc5c1cbf04644b1b2c94679cf96c2d37680ea5f5c673cef. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USCGH0743552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cf0ee39d1590a201fd524f6090b0e8c7b43534183c3645b7d9e8d65f764e64. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/USCGH0743553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5c35cb9a3a01e69b16bac9d51c60b7677e4a9e44756c22b8b05fe40f98c884. 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/USX9P0920047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56675771a684bade3d18471ff6e0a1b2b7cb477384fe6be03d2954825beaca1d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USX9P0920051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead815ae3c1f91c70fce06dde6555ef03ee79de3bf3e7a68e9076edf8e3c7992. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/USX9P0920052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc783c0ff405e4a56d8c20e1a6c269c413cfc24153f31197f4ab538d0de99e6. 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/USHM81141671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe644f606e9b2bc811e21a980228cbc08815d543d95bfcda6a209c1e7ecc65e54. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/USHM81141677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084a06e36f1546c7fccaf1e307b9cad50feda85a1a16d72e7a375bae68c18ced. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81141678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf61d3d0b2621575afc12a388b054e8e821c91f529c3c0bd9acdfebc92ed8b47. 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/USDY41581133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5c5b2d925d477d3993942e4b594de273643e54ee5e035fe9d41395b47ac337. 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/USDY41581134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58c96212ab86385b6ef40bf5dbeb60846a17dd5979be3349c91d5cad1ec33ae. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USDY41581140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd460aa6ce7dcf1d24151655bccb3f1e96f66e84a0cba1f77621d84c8d7e0a9. 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/USDY41581142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ccc6c2ca14504762aaa8b71e90494bed667e96417032c1424f76bb724066c65. 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/USCGH1899222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c8d7d4b1cbd584b1bcdda547870e27746a8dd3dfbceb96c1b8c67deba92d01. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USCGH1899223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689f3c59b523d09c7467ddee8f62007eb95ff690d6658d99acfb13274232a057. 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/USCGH1899225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb809bea33db6a65ff1ec5c0814ce2a41b26d32aee38d9d59f0d017c172a06fbf. 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/USCGH1899226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794a57853220c622c9e12dbc0a567473100ca0af96b3274f13b118ce0e69eb30. 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/USCGH1899231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0691def28e1a34f3d414502489caf6a65c640f8adbd0275a1a7d139b5a0b73. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T08:00:01Z), 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/USDY41712371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfffd7c3da78f0f559b2232e1de15f25cd9783ac1eefdfe261a1caefad00309c. 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/USHM21835736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d480184cf56e15c739f26996b9fa6d72c8c84ff2266d7674055d2b5f6f90f8f. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:24:49Z), 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/USHM21835742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac136e4d04343baf4dd38282ae78b319673958a00b01ee3c217bf95623f25237. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USHM21835744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4e61951f26539a5ac1a2235b910b293102d41eaa30ae823dd74dc58316fab9. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/USHM91911355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69112fcd1f8ab9751ad44bc1b8559e22f0f86c40efb89501e287ca4760da59df. 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/USHM91911357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580fd865aff0a352bbcc52f520c2994c37fe45daec6ebb16e17081d60b08b2af. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USHM92169180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe48dd05002333930f508fa1209d9c9bf948b8591d3278e3a4f1d8c353350829. 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/USHM92169184.
Queen Without a Crown (The Rince Na Chroi Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131839c135aac01760483161b8dad802695db1c90d70e0e1b969133980311998. 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/USHM92169187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725a552cefe65bd77bb3d0025470de50ed9eed5764d844d3f15bce4af707aad7. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USHM92169189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3fea9b0d646c2e9b48d1a8d6c16ddc5533a4232e37c915b517dce5ac3e9096. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USMH92351889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac00bf2bc56dad48767cfa3d282e727c9d0905a142d3fddf785f5be260189493. 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/USMH92351890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd312d35c174b1287daf0a06187efedabe7df7dd6e44c3e31caddcc108e5d70ee. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/USMH92351891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ccd3060cd7739dd7b1c27a130f30b37e39c0b4612ec3203f01608db599432b. 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/USMH92351893.