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 0x822a03177405d1c2fbf27969fbb4c80e914a2db62812bbb80c885ea5f5b03028. 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/c7bac297-db0d-401a-958d-cee1ece1d425.json and https://artists.proofprofile.net/proofs/artist/c7bac297-db0d-401a-958d-cee1ece1d425.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 0x6fb224383ead120016cd03936d6efee6d0d53b42c572008a0be658249b0d5cf6. 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/USAGX0504425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73b408519dd4fea8ef3e42282dbaf9342d46707d5596a00f9944022d05d11e5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USAGX0504426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04d138d8a7ff73d2fdf1efb63934849d62caf96a6c2d0d6b62fc9f7906e5cbe. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:34:48Z), 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/USAGX0504429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850c1ad28bf110e98263624566ec174ffaea76044f2b13a30aad154d326fd8bf. 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/USAGX0504434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b2a2a531b07a3e54e2c9622ee70c4199d96bfa4b918b6f5f5d7b16540b6988. 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/USAGX0502300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d72a85127a0a1b4ffd2d1a8a5610c65e893fa3cfa13d10c7a8b4dbbd643f951. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:28:53Z), 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/USAGX0504394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c75ee649cf9d9e7076326342608a5c77cc62ca7df130b6423685701013f3ca. 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/USAGX0504399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6a024d2ab0408892f86234fddc3ace9d98873c23d0d3b1da774ba6c89480db. 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/USAGX0504407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816ac9bb675f35d2f13ec87e5871aa9413254f6e0a165e2fc9bdfa7b09ed8a9d. 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/USAGX0502272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5718fbfc7c7b52d30e9f348a3b8f2d540f5752ab3e44ba94fc3dc1db054fd7. 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/USAGX0502273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3de9321577eb5bc6123435135d34f824b0b89b3d596904f0b5ee96930ddf38. 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/USAGX0502276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e7b4e490500e3b5c1c16652797264458d0c046f26c7271063d552bb64ed2fb. 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/USAGX0505141.
Alvaro Monterrubio Acompañado Por Los Valente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe170cbf6c2203de481809f74c84fcbd0c8d7c927aa89d295f322fc0196ed3871. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:26:14Z), 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/USAGX0502281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273f4d7d344daf3a921a51ef45cb30f6fb58ddce277d71bb210206ba9f6575ee. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:20:55Z), 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/USAGX0502282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79f7a7dd3f0e228ffda92aef187bbac548df21220acb766774dfb723a18c1e1. 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/USAGX0502284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a39cb6bf8c1f5df37a437904b9a05b4043e851dfc080ddf85e55b74ad194fdc. 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/USAGX0502285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31a78662d6001c945cd8a691dfa36fcd044a370840da562402c3d7d00d70a7c. 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/USAGX0502289.
Los Mejores Corridos De Guerrero Y Oaxaca Vol.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a071b0b248386c9c787e4a8d0f4dba6a90b8a36eb0a518dfac34eb5135f94f7. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USAGX0503312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf28435087c6dfe4cf958990e2bb985678cd0760a22c56854c4dd1c80ef5e4d7. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:26:37Z), 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/QM6DC1720127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1796618820ae96eccf4a2a5e3a54a9abfab6f2e8e32b36a129f2c8da1e10d7. 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/QM6DC1720129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d06c2ebdbf0d0bc4be306240d762907497c7f4e11632e0d433bbe3d4a2dc7fd. 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/QM6DC1720135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10295f66b3c9b1353dc766e61eab875445dab02ca8eb3d01e77ea566cdab0e7f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM6DC1720136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce0e868be743baffc7ae38bf90d3ba03eca5bcfd915a2dcec79eb70c113619d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM6DC1720137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09d6d431341e968944c07114577683f06672232e79ded5fe477876254483677. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QM6DC1720139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912f7ebfa8db6704cd9e46d9ae2cc24db28ebb9d395be69b16e3aee478c5a8b8. 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/QM6DC1720421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c4c2fe4835a7c95ed87de0eae0ef4bad0eca19b68d9b402b894a41fb794659. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:44:04Z), 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/QM6DC1720400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879a1bcce807bc9a05e3a9dfeb6d80e9a7f1d10d2fa5c5aea480ef09956f5bec. 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/QM6DC1720401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29ddc758f7599d5cf533a984fdd7433b3ce2b36f378372a8bc84e9221c76041. 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/QM6DC1720403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbd40202e004356ad8d1b59a11f74bca8f364848eeb9f8093e63bedab2980de. 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/QM6DC1720404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ba7d6a559ef9e01e37bd87f9aa041b045669a58c6019d1843f17bfcfd3d1aa. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QM6DC1720405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf86795a32b194ed784a1ac4783973d3304fb3ad859b64a01b165e563b05d1a. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QM6DC1720406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041ac0bae17ac7415d242cbbe29b59e9dd3c0a64740c4355c5298247fbe1e55d. 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/QM6DC1720409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd70a530e91967133e43521f5e9d6af498fc5b44becb5f7c2256ffdba35a060. 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/QM6DC1721498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e31d6d90216a13260b8af2588c3f6e119ca422c3146cab8e7377e170fdfef5. 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/QM6DC1721516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cdedee22bab35557f1993fb0ecda4989daeaa2ab6ed1ce623925b4badae774. 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/QM6DC1721522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085d35ec93e31ecdf5e0a44bcc75f6c4303f9fadff87b285ac28c9bfb198f9ed. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:36:34Z), 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/QM6DC1721485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1102e2d0c569a0c6aae9c8e82cdb4c3c04de6b3cb2c01244e44d67195c90674c. 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/QM6DC1721487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a636ae109433a1b670763d82ae91e0fd0019bd9090837529e95d2b3d0d4378. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/TCADR1802789.