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 0xa668ea15ab722dc68ab17a9e5b7f36b67b83ec0b22757a9a44182868ca1a6423. 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/cb7a3b1f-52ef-4625-8506-1a45b29dc7b5.json and https://artists.proofprofile.net/proofs/artist/cb7a3b1f-52ef-4625-8506-1a45b29dc7b5.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 0xa50e4da1ab2bbe4222a4201092d7621e276261bd5e3e3b9f200724b4545a8285. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:44:35Z), 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/MXF550903337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d7bd1bac7e0282245ee00121cc247dbe0dbf1e3b062686690c5b163aa5670f. 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/MXF550903338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97fa42cda3c471f45aff544fd02f75219ec10362794237ccef5c3221f9d321a3. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:44:42Z), 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/MXF550903341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263f8e6c3e52e3fce456044e44ec082f63981e32fe1c04969f5c46af5345f347. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T16:58:09Z), 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/MXF550903344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cb6efc50e7abd01ea133fd5e70941c8eb653dd452886d3d046845fb0ad8427. 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/MXF550903345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d812cc18581e2c7c2269c8a22e8b841039721808f82ff95bbadba832d56aa05. 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/MXF550902652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324b84bbd3c2f40c810eb56d80fd393f4d5f37bc8187774f3b1040e1d065b60e. 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/MXF550902650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c85fd7025df0589a461129c07be9137ad4f8586b58bff2cef2964524b0ea42. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:28:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF550906983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653337696b3d5ccca36ab1000a7cd19097eb86b3f2b4f3b4e6c8cda300daf30e. 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/MXF550906971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eeda813175af742e422b67ff426b424d11fee5f9b463413350a83efe94b3388. 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/MXF550903335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3aba9d459a685fe140a1fb4b7b48099c664e0a0a3c2bd980244c215f2897f7. 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/MXF550903331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d074fa825ea316816bd63ea6723eb7130cf5ad8498ed944a3f55a90a681327. 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/MXF550906972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50e4da1ab2bbe4222a4201092d7621e276261bd5e3e3b9f200724b4545a8285. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/MXF550903337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b6aaa0f40fee66233a17b079583e5567bd112025b66f56794399e2dfa22884. 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/MXF550906984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ae10a7851e2c8a8b7b8a372ba9d21ad08c4603c701297434594ae052c28623. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF550906973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c5b7b6c8f6ecf2e85dc655e362c016df6168663b656e8bc6c2a2452c7433a2. 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/MXF550906991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf877f4dca23123b9b5a5d293fbd23984d7919dc012c4c8f30b8ee01df6d0fa4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF550906985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb53521896103d7742a9e3e3697a83ab2948fa7ed88212c4a422b7df9cd5f3d9. 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/MXF550906974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d7bd1bac7e0282245ee00121cc247dbe0dbf1e3b062686690c5b163aa5670f. 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/MXF550903338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97fa42cda3c471f45aff544fd02f75219ec10362794237ccef5c3221f9d321a3. 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/MXF550903341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf49ce44bad19714a3c74a75ebecd7b8d99a0360571dc0e56baffef7907a055. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:30:35Z), 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/MXF550906976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa268d8c39fbd5a6484414a1b3ac950de0c31c68bba9c5bfb9858c88e3650c9c3. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/MXF550903343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e513f6d4bf6792d80f0948676f47631f8a9b3b797799698187fff054af6c73. 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/MXF550903340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95eb049493dca88852b29b4daa5cb9dae3a86283b76aef2dc114800315051c0e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF550906978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc20f09e573634b2b4100f09d8ca1310b0c117687cf9a4989a8a906173607ba9. 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/MXF550906992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51eb1acb4570132a3af8ae7afd8cd47242561ca92b309b0e5c60b5c7efe9cd01. 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/MXF550906979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b70d635bb1ec6ecf8c6481e2463c540f0c0478929bc0e8c1b33fc7aa5ce144a. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/MXF550813396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f418fb8727c9303828be15ea4925520fa358ca89b0fe5f1792bc0da53934874. 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/MXF550906993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d9e97a6aa9f1ef368d6a054ed8aa4591f343fe2f79bdf86f05404e25aff3c2. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/MXF550906988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263f8e6c3e52e3fce456044e44ec082f63981e32fe1c04969f5c46af5345f347. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/MXF550903344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cb6efc50e7abd01ea133fd5e70941c8eb653dd452886d3d046845fb0ad8427. 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/MXF550903345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6724805976a839379219410baa957567d72f2886d14387733542ae82456073f. 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/MXF550906981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3468aaf7fc4c352becf032ef82b3f3a9e99d486c7141a2000d0d7e53bec46c. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/MXF550808463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f52998b9cbbef72bd29eea481c305b964c6d0fc3ece1cc6bb0a418566d1c36. 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/MXF550808451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ffc3a623276e82c3f8288039d68582ce0624846260eebbda099b947087dd4c. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/MXF550813566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c5896cc75d6f84aedb881a796e61a67acf106d0bb3894cb5ade09886b16b79. 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/MXF550808458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5e4be1bd0ca081a99ba6a9450dbdbfa3d351edcf5a7f4fcc53fba7c35efa4c. 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/MXF550813563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed1d0ba1f7b9d3845b3b3057c8bfa67e383d6538db69b6dd557d49825904ede. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:31:25Z), 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/MXF550813523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d20acf92604a9a49c9ce5c7808afda19991506f604e8cf8bf98c320c6d948e0. 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/MXF550808455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e8a441775529b18c6d57d5f3e49f1f3199bdba2c57f8ed3c7e3606f7205afd. 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/MXF550808464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3cbcfba73d46882e83080c231458085aeca22a0d5a4a8e7f08752ffbad360f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:55:00Z), 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/MXF550808461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20a70e58fb8cbf6af4725f8072656d920d434b10787a96e8135a7f9bfbee35f. 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/MXF550813567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50e4da1ab2bbe4222a4201092d7621e276261bd5e3e3b9f200724b4545a8285. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/MXF550903337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad6fe1b6856752c13cc1ba5c5de9eed17f1f265e5e70b16873f3edafd1e35be. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:53:35Z), 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/MXF550908307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0fef068064a44a0d3f788e1e1f826bfa29c6296e5fe1aa45dd547b71e9b22d7. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:40:41Z), 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/MXF550813532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2275e475a6777bdffb0795a406ad9d99258f3dc81122c2deac1363542f24055. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:56:52Z), 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/MXF550813535.
Popurrí Álvaro Carrillo: Amor Mío / Sabrá Dios / Se Te Olvida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d5b0b579775babadbd35fe51ab92e0868764cae9c1dcf80f7eac257f768c24. 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/MXF550813525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20a70e58fb8cbf6af4725f8072656d920d434b10787a96e8135a7f9bfbee35f. 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/MXF550813567.
Sax… Amor - Ruy Medina - No Te Apartes de Mí
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0823c63af22c740c5514fbeba102b687ce75f8a8feed187198a2a4aefcd9d13e. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/MXF550807246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e999461050140f6889b24b84a6bb8f33ab105e54592778100964b56cdbae7bf. 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/MXF550805988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6934b411ec122ac525a0330ced6ee0fa4d57444719f51a2dc381890e65099669. 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/MXF550803131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8dfdea70e3215fa53f02d15602f702102a6b28dc45ef90dfbdb175561af332. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/MXF550805604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8eb9cfec3e22215a2f30f052b227a6ff8168540605333a665090ca87d4ba636. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:51:27Z), 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/MXF550810440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73694d54ee8084215ebb3cd0e31b8cef6d2fc7a18a836e6a0114ae20cd6911b9. 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/MXF550813405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc9de02e238e02cd1f2661569db11737e39990a72abff68a4f7520399d92fba. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/MXF551605320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15836c9ebdf58101021f2807386b5fd57cf2aa51a72385ec10bc2b2fd223cb3. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF551605340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3026ca2f71ded631a6ab9f83cc6e2533eb5ef7559177718568373f67e8d063d. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:04:38Z), 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/MXF551605351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d3183c2045ecfa183529aaaf365be217107ab30fec5542bcfc8164591021a1. 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/MXF551605352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6ae1d78686ea34b4e6e710a47e0b953075231e492b84b554a2b01f39de7659. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/MXF551605356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5cc5d8c11924081c78b1d54196c6024bf625e913ab36ebc09898169203d8a1d. 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/MXF551605336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf25b507f34917ff1fc2dc04d8e4c05b1d19d792b18be4479dd715c451dc117f. 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/MXF551605349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6edc9179d52505b653a06742ec3a90324aa70478f1e0592620fc50bf2ac73cf. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/MXF551405133.
Pedro Infante, Cien Años Sus Canciones Instrumentales
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3791ad0c5f7934dfd5d8d57da6a219d9560e4dc008cc0e2c1feb865737be65e. 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/MXF550900307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c55f0552dfedd1b8ed8ab974d48974673d9384a130d769ee80b7dda8d9756f. Chain 2 (Bitcoin): anchored in block 957034 (2026-07-07T11:52:37Z), 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/MXF550808138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4de8f0baebfa6c6dac76d2225267fe1b5c870e09ee53bc73dd1e16e62cd694. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/MXF550808377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9348b890efc50895ef85683b01037a271723f70a054531e91174fad10667446. 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/MXF551030873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf1cc104baeaad2193d9570d6283237ac7d81ef3fd739ecdf9092d16bdddadc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXF550808148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63478e9681fab82c37fe3cb980de9bfee73ab81e88f58c5afcbd8584fb98b5f4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MXF550807574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7f3735d83998634d4c28c0f0e7afcec5a0d40ba7eb9c779c5710fb5cf6389b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXF550904950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9935afd6b3e0fab5ae5cfb01a421dfd212a9db0aa917a43fd1dc5605dbe0558b. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T20:46:25Z), 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/MXF550808367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd5be6f06d71e628add21b74a847cccc52510477566ffc43b1d45d0e9f73f7e. 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/MXF550808146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2746d8bfda4c636806b9ce734e326d3001dc310a71975582974d7a1af5423a96. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MXF550808223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f46d04fa965d320d9c0b8361dca13f3b14e7a6315c4d0e3f872be2622fc840. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MXF550808150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1411582ca38df53545603e4931352360f3266830dc4d81293a7f7997b430ac1c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXF551257408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed13a419d8b52935bca59621d673b6e1722186fe568067f5190db0c502ba7b5. 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/MXF550903174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23550307761cff53969c249403feb2ba0783820df4d697d9ac85a369e843a6f9. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:43:08Z), 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/MXF550903474.
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 0x2dcd5142fb590fed096cca87a5d3df06b0796c56925dfe7a9f05bef8a570c0ff. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/MXF550813400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434e94879538b26f1dcfc1faece6971be13335c2e74b388f5f3d889d01967799. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/MXF550900303.
Popurrí de Pedro Infante: Cien Años / Que Seas Feliz / Te Quiero Así / Que Te Ha Dado Esa Mujer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddd00eee947468f130483fba4473e0fc0f567d0380c795375afc7ff450c7d98. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/MXF550808395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60b0fd7cb5103aae503e391863db93490d785ac74c13d0caeee6c0bd16ad167. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/MXF550808306.