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 0x68b929ef7c7207ae1da3ffe2f6ae8ebf0c0fbaf6f19f33c9f9c76508bd32bef5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be8a6b5e-91d8-4f87-b887-de9dd793a971.json and https://artists.proofprofile.net/proofs/artist/be8a6b5e-91d8-4f87-b887-de9dd793a971.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 0xbd1fcfe2b92ae73b914b12a82fa700450bb01e8d6a38063f885b3e1c4e19bcbc. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T08:53:14Z), 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/BRGDT1000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc47ac04b62cbbc38b3d66fcb521a63464fba794e453b6af57265a4bf0aac83a. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:39:39Z), 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/BRGDT1000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75438355f40782e8026abc922a0209b23eb0c4f9358368925aec24a8c264c97. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/BRGDT1000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fed295cbdcb351c313bcd62d7e3caa9df9e175ac6e97698fc2d6396da73331f. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/BRGDT1000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0877c6ca9c70c69c75676bb8c5591bfccbe1109c2199d6932cf0772c29c77b0f. 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/ESA112318198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb356cfe9e2b36405ead0e201e62ba7312f08961287a386b87aef7cad093a16. 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/ESA112318201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc385803f1cd5147e4fac30bcdf45511362a9581bf284c3c6e29d95191d562b3b. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ESA112318207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440462581725e3ede365635552b475c14128fa7629125d4f8cf3a1778db61b10. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:46:00Z), 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/ESA112318208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e36c78979772a7f56392075fccba5a6a26423630f47760b688d0ca5287c1f5f. 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/ESA112318211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99feed103a917fce559531f9718112fee32dd99dd0497a03023db75c5ccf568e. 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/ESA112318212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc28f1fd11b8a7f7692238a383edcbe1d385554f5cf40068fa181d5d65b1b90e. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T22:39:40Z), 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/ESA112318213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e99077cdcd2f3c47e9fe80dd2e80a13aa2b3bbbf17bcb18a8d903d18b0d2f4. 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/ESA112318188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807aaec7333141e90e7cce2e5cd41695b3d9594e40e8b10f964d723d861b8511. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:51:07Z), 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/ESA112318189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e903eaa2c47211c616c617290bb741b6f7628a68ad9bd4326d54eb2bc3431f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:05:35Z), 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/ESA112318190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e8fbb588fb65169ff17a3c8a11806621efebf7c780abfda3532366c4753eab. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:02:54Z), 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/ESA112318192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35bce9faf2f40570ab5b47901d11b8901bd0703c06e80e24b9f1678688dbb0b. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/ESA112318197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3198bb5f530434b004bfd93abb5c43fceadc2217355203fe8c2d97aeb4fd3f1c. 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/ESA112318203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e5598f45225f972d25e5f55ad3cba761d049412982710b29d02648b457fbea. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:19:31Z), 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/ESA112318298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf05f01c1945791646371c7867d0fd85d990ab2cfb5a0a978819cd9c8b6f2c8. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ESA112318300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e08c131abe68ee5697c9ee455e3ee53d04991ed2b70773acce0ac4a024e004. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:12:21Z), 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/ESA112318301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972df70de453bdc4814b3ad337afb9cbd155999c9a08c7cd8a5e56d8414b0092. 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/ESA112318302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3534de59d00d6e7aa80e1e9ccb3679b2ac7115a67c37a05113df11dddef32e. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/ESA112318304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e05c759726434b0dcc022f3ffedbedba0fce48d11c4471db5e9ad0fa239080. 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/ESA112318307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291c085bef66cc8f018d515c94536a5b419c6790a26064316f97f7c7adfbaeed. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:19:54Z), 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/ESA112318308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d306066b11ce3783413b2b2a0d74067cd154765b6199cde436ea42eee67fe5. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:27:43Z), 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/ESA112318310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6966754abfc173f0a99ec9d9017c941c85b36e6c6e3f2143e90a80897b2db785. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:09:26Z), 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/ESA112318311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e708326cadc55fa5f4e9b007a00728c02a72fbe05e8876a86f2816fe98708df. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ESA112318312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6ebc7d4f51823de5705f9cfa5102ab5331f9b99e60f6a84eeef8df7b563edd. 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/ESA112318315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1275bf8adc90e98604b46fc566449ded85652d1517969eb81c5afbc49141c8. 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/BRMCD0400177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c6c6ebf4a0046c794c6e715e246f3c866fb192df60e23e1829372704863a79. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BRMCD0400178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c51f1ceb74b19a931b6b8086003796d6e15f9869c36453b99db7b083bfcc94. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/BRMCD0400183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ef4c5ee493019d2cb3cad5f76cc26450964899112192e589d54758c8f040e8. 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/BRMCD0400184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a1f0446a18230e09dd9f3fe84548b637f3e17b5b38578bc263cc6a8d088403. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/BRVPE0500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa305b1d6f892b9487f7fe64f9ce1db620fed8368ad8be6c4d548d676352825f6. 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/BRVPE0500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a6ed80e431c3c666455340e08458b29af59a912c56fafe4566d0f3b65086fa. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/BRVPE0500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145daf2973ff6849b90f03e5d26554154114ba05f73988deb576d4915f056557. 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/BRVPE0500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33322e4405ad916c1fc9b9262d02f359dc195b11f973ce576adbc81962f4a303. 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/BRVPE0500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1658215436f399999a794df71bcc41fd9a437a8a3b977421c2ae16049d8b36. 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/BRVPE0500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb519d316d8d269f22c08729b1767ac5e4a9c26f95c5797534dace07bcaa8b8. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ESA112318146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9906406c6349adde13e27aee5a3748f8c2b9829a58b8fa95563dc531072e06. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:49:46Z), 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/ESA112318147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c74c3791bc9a77ce366f6ceecbb272362a00e3a9a4ecb18408cb28b52b650fe. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ESA112318148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa81275196f5f02e4a3986e9c107f64c3dbee987f6312607e18d1e15cf0a1db8. Chain 2 (Bitcoin): anchored in block 957625 (2026-07-11T23:15:09Z), 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/ESA112318150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f444ab4dc5580af074f3269431a7400c17291c92296081125bccb72f0a3c4af. Chain 2 (Bitcoin): anchored in block 957611 (2026-07-11T21:33:50Z), 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/ESA112318151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfde82105c2b0d119ffbe49328d3fa6e743cca4709334b391842ac5d68f4e01. 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/ESA112318160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8ad6856692f3ee7fcd5b6ad11a6448d7f73f94c5c7271c19815add8a071340. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ESA112318162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3923e22ee4e80d44bf6d35a6b64ff1bbc5b03eaeac4900be36de3e313a81a2. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/ESA112318131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f8257f7827183594936d779c66f62a1d9cb35742a36950959d7d7365fd1c96. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/ESA112318114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed445c43405850b66ff69cb1c409f6cc40beee0055ac93f04b429055348fd215. 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/ESA112318115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d02fe513599ba7eb142c62f4b5c122e277c3f2c4132158c29a597bce70a57f7. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/ESA112318118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb294fd5ec1ae6550a87dedd29915aff640825904c2f5cf997425c5321d21d5b8. 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/ESA112318119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3b18da01b26e7e2cadb544e2e33c00a12d35840a1f0e42fcb363170ab4bc01. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T16:56:55Z), 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/ESA112318128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd394e8140618b79b969978275433a420d821f2d5be497471128cfa8587c339f5. 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/ESA112318363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8e9b286f9a66c788639ee2f81aa8072c84fd8a5e33d09aa3910026b6c41441. 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/ESA112318367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77011fb6915253540a6e589ec1bd0a40572871187a9f0c2b407bf4d855a7123d. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:16:19Z), 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/ESA112318368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f16312e4f2a9fa2cf2b706e46790d5cd49a80ada8b6740b020b92b81735f63f. 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/ESA112318370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf267239ef6981daf89a7ef6e7d2ee4e8afd9cbfc52e7d2400b322d04598f49fe. 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/ESA112318374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9dfdbf9d20876f36f86f7ea21d5a16b47f7709ff48d18d9283e65dfad7adfff. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:56:28Z), 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/ESA112318377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9982e3af7692d513ea0986d772f09c5d43a3f27db987cae500de8f87a2c185. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:35:59Z), 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/ESA112318379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8ba550da2b61ee57cdf47dc3dff48fd75b6a04484a5c6932af3ab1fcd81006. 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/BR4J02400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e7de61268698eb89cdacaf303627dfabf5965d1c17d02144d295e6ca73cd19. 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/BR4J02400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48772d6928d9ec6cdf6de6c9d3d79a02d48bef09876670c7d65cc377cd73e15d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BRAPI0600867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5911a075f4ae1c5d488f551207f66e125b18d8a0ae615f51ef094b5348e770. 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/US7VG1745957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab79092e520005cd7768a51260e1e5c0880cfa95c96bcf167a97504d604de54. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BKTHD2200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ac3bbba2332faea4b5408f73e5b4299307ec9d6765a2d96cf4f56c325e4842. Chain 2 (Bitcoin): anchored in block 960430 (2026-07-31T16:09:41Z), 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/BR9FF1900029.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch