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 0xbef53d4cd85f0b03483f90804d6454bf399ef915f84395211c90024868851a57. 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/f5b64aef-c6b9-477f-9849-65433f90fb68.json and https://artists.proofprofile.net/proofs/artist/f5b64aef-c6b9-477f-9849-65433f90fb68.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 0x436c89380019e9f652eeefe8856a10e7fb752214a0d69e8319b4848b78ef2ca3. 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/ZA8NC1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67294604ef00964e4ff0256ae6d7142028d421825debd9c90e6a805bd3350b69. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:20:52Z), 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/QM7281716307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ff664eb099f01ca15544d9763f868d91daad19b945852177375d9c481a547f. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:10:31Z), 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/QM7281716310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537852e0fb9ddf4199dfb3d155eb058df7128d61c41bc9f70910f38c57234a55. 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/QM7281716312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce31c1aee38866b5d7a09b0e8de9b27f170c652494efdab6960888baa6e45604. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QM7281716313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0c309a0f430d41991eb735eecfd5623f92708d5d2e9f78521d4dafeb8687cc. 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/QM7281716315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd5077675d96b74abc14188ed27097609271a9ceb52ad068a5453a8d80ac31a. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:54:33Z), 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/QM7281716317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f90fd19f979e5d9109c94dbed662ed79b99dbe3d077c707436f821d70f8edea. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/ZAQ651200205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940bada8a87f7afd2d0024cde45959a9565f4980cc4e164f56dbdc6fc6e426f2. 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/ZAQ651200206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f3e33f6bb413caa104e32320358c9e46106d786ca4a8dddc9019b7b81178d5. 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/ZAQ651200208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1ae232179b3b79d13a3fe1ffd25295a0d6eb316b1202c87d75b848afad3962. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/ZAQ651200210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52667e4a6fb71b0b5ad613d0c9dbc459bc1b77bfca0ec55c591182f09e60978. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/ZAQ651200211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe356050c3b64d4bfe190a906ad9f3d42f1c390c88381e5c7570ab07e1f941c93. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T02:27:45Z), 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/ZAQ651200215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d767549d7e05e33abc513a5076d45fd21655b4216469a592002492c659c631. 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/ZAQ651200216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7721b4d81d6d3251ae8206341dbe9ebd31f4f59603848a94eaf101d75fc43b59. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:52:02Z), 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/ZAQ651200217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4045c9b47a7df883b0909a23646b16f09000209c52f5989908d3b1a8f1f752. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ZAQ651401468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf12b3fdef4f0ccd7df759492e998ed9334eb6b4933dd72d6df6c54a9046f760. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T02:27:59Z), 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/ZAS712200075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb618e0759560fea7f3da7b1d8ffe5149540a6ea29acb91b43204d8896cc8975c. 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/ZAS712200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ab16fbd0a7e2aaf7af52f1b6c0c62f5240d6873ce0c07aa82dd249c86bc7af. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:23:33Z), 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/ZAS712200079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d5a5802fc99478f5194756edc0b66a85d78d6801a2fe773448eab7d1226bdb. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/ZAS712200080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e5a54bead1c57cf3080df79216305b516918415dddf23684ca523663f375a1. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:38:07Z), 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/ZAS712200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59e81b0739ebfa6a098e9ac1e280de5502d54e56109b3dba83e1bc3a3113e2f. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:16:52Z), 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/ZAS712200083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa959448adbdfd402b306b489426723e9a3aba2ad0b4789270ed632154a10663e. 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/ZAS712200085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42ea0c29e698cc79e153ff2d761698cacf406bae51df4d2acc2acba5af89407. 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/ZAS712200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe469043ed4d7601203064f73781d21997325c3c5f6ca7ceba4bf7cc1b22750e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/ZAS712200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a6c61830cb25051a28d15106fd5d7b68f8b6480f0ea7e02b1d0d4097c366ff. 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/ZAS712200054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae6593eda84f5ba29290d73adcf20603ac2a4ad7f7b949ce29c84591eca910d. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/ZAS712200055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ffee92d83b86a0e780ca3ea27de3794934b14950ea1d17e4cb565a7c2e2c1d4. 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/ZAS712200056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe50a22e58023e821fcabd45dbfe6a595c7b92af7eca13bf7c0d88ba94d7c3b. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAS712200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1dd7086ef30e1f4908aaa2c0de9789e7d68781db7a4c6a280cccdfd04988c6. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:04:10Z), 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/ZAS712200063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f704e25edac2ee2b7677e34223bfe908e45e0bc9a2104f90c04badd0519751d. 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/ZAS712200064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6be48cd4553a1a499fc5ba74db3a65a09e820b278fef9b0dd522d04ee80d46. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ZAS712200066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb213fc67cff7d3acbb9a9b4134dc26bd0c39d9d49a0604aadb1da16347b75938. 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/ZAS712200068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6799e0cfe5bac393c22e8fd5fcd6a6c8eebd9eaaf43a93c0e7b1ea8c6652f1fa. 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/ZAS712200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd738a93e283c28e31493dfba0fe89ebd3f77395dd47f1eb1775ba80934cd7e9. 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/ZAS712200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1169e748c0818629a16039bfb0d63695008b16f213d0e55311fdda682cb9cc1f. 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/ZAS712200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2815c8ad0e79e968c285f5d2268fbe64d14baed5e0e515b6fc89492ccfc2b9. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/ZAS712200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb74b6de04382a7773d8617c9ea6e7041f60dbb2138119b818cfc54a02fe94f5. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T02:34:20Z), 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/ZAS712200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec8b7deda3910bb80312c852a1d2c82d7f08bf63718c3019543b4308a8c7949. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/ZAS712200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebec1382a404c59f0efe8fbeb20f7387433455c8c811f3e2ff2490aca0cc041e. 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/ZAS712200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7170d0e3f086dc392f6e4584e47b502e9e223549498a9c46bc2e7ceafcdd0b1e. 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/ZAS712200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f0dcaf75bfb80d1df7ca12cfa6ded27ecf5e789d3a74acfff0a9319772190f. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:54:27Z), 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/ZAS712200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe281f4974b7f311650eaaf984e21e07c14d32a60563c9a755c8d3928f717fe4c. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/ZAS712200103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2deea6a8e3aa0f8e8d1f60949d50e0b9edec2c310f9c5ecba8cef343fc5b1b9c. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:13:44Z), 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/ZAS712200111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb33a0160fa86602c0359e0b6482f5e66d17525465691930ec9565af91735fc. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/ZAS712200112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7a2d72a1c56def5442e96798f6f1ee2baff257bcf0106f57d5b99f0d98484c. 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/ZAA021200134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407bc4c0bbb37348410182e840a9f8849f85e2d0215a52b27f725aa50f541cee. 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/ZAQ652400713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122e0097f30aa9f76ac02d28ebc2394cbb477baf52723abdc7cde02a5450be26. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T02:26:28Z), 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/ZAQ652500702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510b1a787c1a4eb9aed8d79a5c022d03ed70147f6e09583c6c422a1e9a3d07f5. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/ZAQ652500704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797ced2985f2d5e24651a67269872e0e2a092c57bce7a6a10e41b4693da840ff. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/ZAQ652500705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0574d001ae630f9a959338d634b6d04386defb7d8104ef058bfed951fc50afdd. 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/ZAQ652500706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf759bace82331af50632dfc325289a995b45ce2a83e42cf43ccba2d4b3afaba. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ZAQ652500707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1d14e3c223d64d9d9cae59b1da130e31234d97f871756f576faa3bfe1fdacd. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:00:16Z), 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/ZAQ652500708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57e72d8548a4cc844efcf4053dfc7bf900a450f6f1773d76af62b6f59cf974e. 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/ZAQ652500709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeace71436ba7ecf11854524def0da252c07779eedb252a68d4fc8119c0a0598. 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/ZAQ652500710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf202668ad6a8a3e3f41836b22696e69d71aaf59f2b19a8bee589baf76cff52ac. 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/ZAQ652500711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44eb8c4ea8d84d8458aa7236f35a9e02bb824136fb2ee19900adeda2469a7453. 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/ZAQ652500712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6127bb2d6afe2da7ebe2a4d9a0954ffed5f8258fc776c547f673f4669d183cb1. 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/ZAQ652500713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680eb2e4490c9ba6716b316a5643df7804f9164343bb446acde772cc54019e8f. 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/ZAQ652500714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4079942af6bc5d20ba527675170862578d8a8fcb28c589c1940345ee324d3899. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/ZAQ652500715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90ca9263a6bc03ba0a33f0ef73fdf6850a2095d22cff23edabed6af1d689564. 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/ZAQ652500716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25be671f4284e0a8dee7180c66af3fce414118ac06ab31a75648347e03549dce. 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/ZAQ652500717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3e91528620ef194cd64fa7796bd080fcffe989c20fab3dce108975300bb1fb. 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/ZAQ652500718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21c9eefc958bdf55858df5a5678075069cf5ba89e88f1ac6ddcdccb7aa2aa02. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ZAQ652500719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff20645f8f2963f00227d78515869b72a1433f6090f15fe4d44322e227cd69a7. 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/ZAQ652500720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5707236c93ad7b8ff5d67d5904eed65b3811cac929d01a5d68e09c06cdf3a0ec. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZAY361900547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8411ab030c7c9401010cf626cd849abda2e028cf6462f05cc8d65e96dcdfc38f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZAUM72001566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23b4e91c97ea1a32b4667531a6fd2935827dff95435b1daab20f60e9c56192f. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/ZAUM72101401.
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