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 0xa2f08b41b314da1ddc635e2acde24f03c8899c5904f5efca16332513c8416abc. 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/c1b28e1a-7558-4f02-832a-3063fc1ed939.json and https://artists.proofprofile.net/proofs/artist/c1b28e1a-7558-4f02-832a-3063fc1ed939.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 0x7c797201211643a840a04c8d6f326d8bc4146c3cb362a613ec3e86e200191461. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:38:56Z), 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/QZDQH1817003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e43e4b916e73e40c233b149140e47252b870b0ce828e9180b2f7d575fc2fca. 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/QZDQH1815793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472d75322f4e96cd5a35826391c24010d6a77022bf42bc0b3cc8ddea88697fcb. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZDQH1815911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3533c55f8eaa82704569ce045edab66abed8bfc3e7f7563af7e581eaef377608. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH1820048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc61522b0438f16b594734c8c5da681668902e7e6313b90282f4918531f48c2. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:48:13Z), 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/QZDQH1815811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ff5b070e90418e8e9d18ccf75cc89c0fc4395eb0a21076857489ef1e145743. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZDQH1815814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd606aa5278d50f2c41a5c2c4814b010fc6444452d70b725967d1182bd5024c. 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/QZDQH1815817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79735a55e022b1a484ee2f940eb29cb0eb07c8ae6e3b6d784182e2a7aef02353. 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/QZDQH1815818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa145963b4cb78f9e36b96e649c1e60d023d987e04f394645f4d3d024797cf81d. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QZDQH1815821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1994b5ea016185c7a930dd7b6c123a07ab6e00be95223d00ff9e22c43ad39a72. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:04:47Z), 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/QZDQH1815829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f28f5a39c20864848ca8e8157c6e1416cee6d567047862a7d0e80e98d9852f5. 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/QZDQH1815830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f2c4d3e4e07d45a9617da19a9722406dfc8ca9dae98e747df45aa858f72240. 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/QZDQH1816797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a4c2ec637c254d4178be0461b8b1da3e52f2f8d1d1798c4a55216caa51b96a. 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/QZDQH1816799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfeb67b22a9b90598cf2284d5700b3fdfae51246f21037cbd65dfff45e8001bf. 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/QZDQH1816800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b24f7b86a3d8b5f451c1ccb82e2b0bb4b0144e24c71ae10713b3681d2041b9. 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/QZDQH1816871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba95fb9f6777d22e8acecced4f1cb8a97753c6f9e6013d67cb5a67959bd3543c. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZDQH1816873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca1c35bb954e3d32b14bd22e99f538bc4fb12506ae2cd68300fd5f78bbe7c71. 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/QZDQH1816875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092baff2a3ac9a02ec8db2a05eb961ce2e6285cf284c79ad70b78c0c44bc8b1a. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:01:38Z), 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/QZDQH1816879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c2b96c2afa9f22e8a75c4f633fe106c182245dffb6aa27853e922e8f15c62f. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-22T00:00:55Z), 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/QZDQH1816882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd4b90ef962375e8d6cff43bd9efc06963879f1a263e11604009f4087608884. 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/QZDQH1815781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8abc66efb288a335b952eb0efa4dc04c4efb5aff9fc003729bd1409aeb3e37. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZDQH1816801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e03102ff4015ccb91fe8791a8e973126cf4c98318137ddfce594a0ef45b7d92. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:42:54Z), 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/QZDQH1816802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402347d4b711626281099a9c82fca02de1e027afa67d9c9280bc6fac6ae7f634. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZDQH1816803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10b875b0e653b4b98c2ad84d55c89a3627facb34640c308a2d3bffbbee120cc. 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/QZDQH1816804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec0e6a9e03b87d80e30537d9a7ff90d60ba8a83cb4e80bca2b9a08c94c7f6bd. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZDQH1816808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4310708397c4c9c56432e9e5332854fa6627f57242633a51a55cf2c3a0bcd499. 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/QZDQH1816809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8fb6312e280ae6e3d692bae7fcc691975d831252bbedc3b6f762ce2e4e4e68b. 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/QZDQH1816811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad5c6851b5e8314eb235f444a2fd1e71ad3f635d35ee4067efb0af045c0747a. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH1816812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417c586f0316187c644c5fb1708e6bde35479cbdf1cdae509afaf54862ceb64e. 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/QZDQH1816813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93963f77d5786d965d7052e80efc7ddb4afa7f7173e97b5b8bea8a59558eea96. 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/QZDQH1816815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb12a7f876521701ef1f1a24ec54ae68352c707cd77bcd9fcfd31d3bd0c0a950. 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/QZDQH1816816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b670a314cdf0b319d7864dc5340cfad172012c8b4118f0df1fc488b73d136fd. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:40:09Z), 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/QZDQH1816818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a88c1e1ed99a4d40439e6c664a4cd5ef108c624485cabe15f62a037ae3659f. 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/QZDQH1816819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25054b336828c252c2e572b5cc0596f42752174dfc8701ad5b89c78334971706. 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/QZDQH1815680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e2043a6a71df3f8642c439e1a778235668e217ce5f8cf4e44f0ca9611edbc2. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QZDQH1815685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486979718947d3d0bc2cbe2781ced3e98115a76f2b13f1d96ba03e71f208b339. 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/QZDQH1815686.
Rock & Roll Al Estilo Mariachi Fiesta Mexicana
De Pachanga Con El Mariachi Fiesta Mexicana Vol. 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3e66014afd4db3452e94b2d4bd580c0d0257bff1c8920cf7095e95cf36d040. 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/QMBZ92338029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35155d5fe6c1907a2692337d249d4bc507351d3183ba313978371707c7360d78. 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/QZDQH1816810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e03102ff4015ccb91fe8791a8e973126cf4c98318137ddfce594a0ef45b7d92. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:06:07Z), 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/QZDQH1816802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3957b95248e1eaa02febc906de38fd3e8d7adc60f7e0213b6bf4b73741224dbe. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZDQH1815729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56155cdcf762c08f337087afc268cece1e54bc2c339d1dca8dbccacf1a6a219. 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/QZDQH1815786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1a013455b354b5644a38c9bcd642ef8ba52352879147fb010b401dee2428d3. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZDQH1815681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5400a46703b7dfcdbe39cbc239b899cf8f32f9ea66885dfbd30a4f4532b92fc1. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH1815779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f06d10d7dcead4c47519bb33d16510981d0d48f53287dd4dc57d7cb90fe58e. 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/QZDQH1815774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd60769c5f5ab541cb8a989c2a36c0392a487e5078de6b50fcf3cb34cab62e56. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZDQH1820588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cce548f75255dfb89e3b35f0abb615d00c472016823bbfa34663d893bbfec2e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZDQH1820590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8dd4a1608bcbc450af204fa92dbfa609a4e2363f17593e3ca3a117871733a5e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZDQH1820592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4feb8f03beb01cc851b76ae1bb12673b84926b8bbd2c3627ddcc842a6e5b0fa9. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QZDQH1820593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4a48fb9c9b2441c452d730e4cd1ba84e8d534a5b0ca5716b1b1e8488129856. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T18:10:44Z), 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/QZDQH1820587.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5c3e977d3a92478aaa9722cd6ade963b57fc694493ee2a311ea27bad12dff5. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZDQH1820589.