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 0x1aaa8b1cfa1e8474e421be5298732e36315753b7358ec5aefaf5d693c40785b4. 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/d84eb136-cd03-4620-8d08-db3f5727f53d.json and https://artists.proofprofile.net/proofs/artist/d84eb136-cd03-4620-8d08-db3f5727f53d.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 0x439377bbf7974bedad1f228603ddb69c2dda81a09bcb7c4f2c39e26715cae993. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZYFZ2385039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe9486ed8494baf46dcf2b0be28691a9dd1ae8935660571fc7d7ded01d12d04. 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/QZYFZ2385048.
Borracho y Sin Tu Amor - Mexican Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436902dba708252cef979c27c9f00f98debc35d7aa37746c8cd715ec3329b350. 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/ESA011812376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc00667785f8e9d5cf502af4c7ec25b2a1fc8c31603541260e581b6c520557d8f. 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/ESA011812377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9128fc3de7ae6c6aaf691decee463fadca81f392314c413311bcb69c21926dab. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:32:02Z), 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/ESA011812384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dd64d143fb0f6ac4d105c7daa422b48153c760502d02d2f3cbd0d9f95a60f9d. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T15:40:10Z), 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/ESA011812389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac93c5261dde5e937277c6ad8cac932ab415ec67fee3d8a47c17b1882a35a87c. 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/ESA011812390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc381b85aca526fde950cc19624e7ebf598e287c5ed858e6b644e09317c949a09. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:02:11Z), 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/ESA011812393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0890064b52f68171c870ad5c307dd8231c928dd49eaf2341bdbe88ef6a21af02. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/ESA012068842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf246c9aef627ec3dea60b4dedbb499be11c92bef9df3fe11d3db69d4a16f4b90. 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/ESA012120583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70db7df561fa4183018c5694cd520d313539cb37886c62dd77ebdbd88031b8e9. Chain 2 (Bitcoin): anchored in block 957752 (2026-07-12T20:53:32Z), 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/QZWDW2383113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4cd847ac577c97aa6e39f3ad68414721f78a96aaee084de6118ab38eb12f4d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:14:21Z), 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/QZYFZ2343033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7d5e0846334c63d53186606c060367a309a6baef92c862e56b057ce16e7524. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZNW72342615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e42781bc7aec57722c0c59059c74f5d71b9fb344107909b0683d8048a24035c. 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/QZYFZ2345862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8643fbb14de058a5040c5917ff1e331479db0e587e5f449ac39fab620a11f058. 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/QZYFZ2345863.
La Revolución de la Música Popular (Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2245c2b48a2e50a3a5a052cea3faa1520401d0d6fc266455353ab8113c94891e. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:16:52Z), 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/QZTPX2381148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2991452445193eea45901262b2120f7970c598f35f99cf307a82ea1688882c62. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZTPX2381150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6adbffe6f36fc35b4997570f2c7bce182a7180e259e29c155ebc014fc0721e. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZTPX2381157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da21e287d57eec86f58b07a0bf03c30176217072f883877406ae3a88d678cba. 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/QZTPX2381147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5622daa07f3d55c8e7dadb034f6667dcbcbffdec29b2f051dd4b1b8e4f4ad09. 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/QZTPX2381149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9255a68295296cfb5ab4ef9e1e2e8e2b0ac7c4632b4366293dc888aa7ecec40. 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/QZTPX2381151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683044b22ad5f8c82b09a84a66eee6078c541c728a0d6affc0f89272678f4d54. 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/QZTPX2381152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87302241235b9ca3ed45259b0a759e55c543ce89161afd771de6fe311d827246. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZTPX2381153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1606c06317b212ce269c4d6d540860bafa82f05e9aa7e7a37d20b79753898cae. 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/QZTPX2381154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2070850392500c70daa9bc2fc3eff724a3309cd46ab9eca103f02e6f4e2cc171. 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/QZTPX2381155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d59a5a75cf5c1b85fed305f7028ec117bb65eb8eaf1b3be6d64622e0396732. 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/QZTPX2381156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e4525068c8d81a2901f0db709b020f59fdbc65f4efdc1c9e7acd31048e3a7b. 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/QZYFZ2409032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546836c4e83532dac30d05f092c878c973f0c7d57ddf5b8e0de5d15cc7cae15e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:32:51Z), 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/QZYFZ2441964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dcdeccdc0117be98b0e5bdeaf6ca71ed6ad0a359d2fd9d27d7e0e403576fc77. 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/QZYFZ2472808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d435dfd432b0d70182f1871108dfe2247ee1fda857595055db2207891edce1. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZYFZ2482079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3214000fe2248c09b93bf576f00055056dbf28326bcf01ce24c9a861d63eb0c. 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/QZNW72408958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35df406bd6f1bad2a42e91cdb5cbed56c1c0109e8f5433aa08f49adbda3a9fc2. 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/QZXLZ2400807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5436a291f54c4ca5ede2db0544fdc9cf21bcdc4d870e35e12d83e86422ad64d5. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZWDW2492490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35df406bd6f1bad2a42e91cdb5cbed56c1c0109e8f5433aa08f49adbda3a9fc2. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:15:39Z), 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/QZXLZ2400807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dcdeccdc0117be98b0e5bdeaf6ca71ed6ad0a359d2fd9d27d7e0e403576fc77. 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/QZYFZ2472808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf983a02bf5c7cc7fd0f19d846704a91033564dff3d5b8849469aadc0f781c431. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZYFZ2385038.