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 0xa81c1a68e9d876bfc358b96954d6e1d167178697fbc59b9536a4d7cd9001d5d0. 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/0758a8e2-9211-437e-8149-35f459c6c439.json and https://artists.proofprofile.net/proofs/artist/0758a8e2-9211-437e-8149-35f459c6c439.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 0xdf4c0d195e0eb583d2a9255481fb2042084ff5e5773b674f143c19796a20d2c4. 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/CLUM71800056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bcf3b22141adc61273f65674883c9b20f4dbc12382791bb2fb46cfc21bec76. 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/CLUM71800057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b9f017e42045665e73c821532101a6149aadfb7e7f3c3b27d1ba8fdda18072. 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/CLUM71800058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d8d043e62f2bdf1c173cec9a94bf1a787f91785ec4244ee0166cca4624d74f. 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/CLUM71800059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d52834be065106008b5ebaefaa06bf4a711940065b06b6f859b275a9c2888f2. 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/CLUM71800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ca3968ed0105bbce218576c27746902c8c4823610bf77e18cdbdb25f602892. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/CLUM71800061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d13bce27cb26355d9b225115a626a509fd109331c890e663abe9baeb7a91c11. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/MXF159800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec19f021cd58a97d7b89289a37fa05426489ee2311efcc9dff3749ed574f7bf7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF159800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b318db0272ac79cf81cedba0233ba3c24fa859b55b606f360ffea35855ad24a. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/MXF159800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6235b5b4f743327464a417a14742fb11f5f649c7e1fad2526cfb95210b7586bf. 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/MXF159800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405dce0293b1cc228e948cd5f03ba952a32c726ebafe6ae546df7f48e5ec13c0. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:10:59Z), 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/MXF159800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ce3d1281c256a1e4eae422a1561ee0098ab98def195b28e4578275bdb7dd42. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/MXF159800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad23defa7eab563799e943fc04b46dd8752ccf48a614211e18a478133fd232c. 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/MXF159800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b99481bc8dbeaa4944204f83101227bbfb473d3dc7e7b18487136e959b9111. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:07:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF159900141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f414c6217c9a27b626076c77a37654488993cda1ab3b821413e81a5f78979ad. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/MXF159900151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6235b5b4f743327464a417a14742fb11f5f649c7e1fad2526cfb95210b7586bf. 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/MXF159800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c49acdaacaa8fc26f2bca4024b1cd4698a9c429357290fdc27b98b4bf531c3. 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/MXF159700044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf209ed8203940ddee554d6a0958fbc476a6b3264bfa516552a5de8a7b5de0253. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/MXF159800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce8684b6e22ed4ac6e08ba8c82b68fb4f0beae9e0a45fb2252eb25bd96ab1f5. 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/MXF159800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c218b660ce5375e70daa1148c2a6bd377def09deff839ad5f940b81b05d9c7c. 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/MXF150300307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d24324b13e5ad4d95aba5d62296f959772dd62fbbb88dfbbb69b949fe23cfcc. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:16:43Z), 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/MXF150300310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b45d16fde830e64986e5ee16fde19437ea897d64ff0ba185894dfbdcdcb298. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/MXF150300312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eacd4999505e291cc0e86f1a8ebf6c68d7b983cedda5739f5a897be8f970f9b. 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/CLDD29400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32478e262c5957b5e34264548933fd891320d1bc399a33c754bfb6280c2dbd3. 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/MXF150400254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9129f051a7be18486f81baade13faf679c84bdb7fa9392031729319af55636b. 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/MXF150400258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3dd3f7a9f8fe098adf425c4c5403401c639f8a67a8bd4b1678cdc82a1c4a85. 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/MXF150400261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca792349988241dd74cbc2bcb99dd500923d75e1b319b5c6d73b13d85dce275. 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/MXF150400255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e26f332cc2ab10268a6a15a04e703d36351f43e54438891f8421b37addca16. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/MXF150400260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10aa2098e7066e4845ef452033a910364de95951585a5e1017d02395b4a80e7. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/MXF150400256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f9357d12b5c649dc34ee60fbf8565a51bb085d2d45a4ce2fffb4e09f85686a. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:53:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CLDD29100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39019bb9618de02526d0811ba325eb99d798b9854ec4c2dbec6cf7f9080cfcbd. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:48:12Z), 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/CLDD29100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ada574e5653b693b1a66c60b3cd3d552d5aab25caf8ce433a55c00aecab67ed. 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/CLDD29100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x722e366aafb8a0308143833693c06b0f831cb6e27eb9fef2b4e9c40dcf08aae1. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/CLDD29200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd9c64eeadabe384b1ede89ae09a89177cae2400171aa263b1002d1b7b8edfe. 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/CLDD29100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44787f3cbe52750e8624e41111040b0cb0d1fb93eb67650006a59c123039d90d. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/CLDD29100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2721a023551221569ce92ff45d5da7b022cac3ce054044e4b74f4ce8eea39150. 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/CLDD29200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b97bc3c6e5587095840bf823c668927a63630b5e267c99cde9f74edda08b49. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CLDD29400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e937cc62389fc9f335f096ec1f95198ff9f65b5d1f8596f32b74e5f3485d9b. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/CLDD29400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69eb30ead8564c9d535218ec817315f6a34672a4ea7a11344469b66a5f57befb. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF150300314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f7869e140956be419cf3ff1b71fe85bbf15ce18c07bb0fba37053fbe23887d. 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/MXF151600032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd76cd3aba4881350ea693bd6cca0d936259f3ae3d8669f4e7f435ad7644ac4f. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/MXF151600033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfdfd1c657230a1795efd6abcc3a203e5df2ec2df1fbf7ab5bb06938825d09b. 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/MXF151600034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e37b9c74844f7af402231bbd9c062a4ed1b27c10aed2dd0ac7aeefe0c32f288. 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/MXF151600035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543e186f023ee0361062e050d9af259e506f09f8b7cb3e70549511e49bc80a05. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF151600036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc44ec7243b5a40abb782a69c8475745c72cf2f33f4454f1a71eea5e2331b280. 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/MXF151600039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc58f49748771b159accc109cc561b3429f5f4f51e9d559d85e6b02058ef009e. 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/MXF151600041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed797dc7f0009e98b83977be16c5571602d96b5d186c1d33450274ee0d400184. 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/MXF151600042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f9d70712537bdd026b3ecfd4ba40fba9790799e134fb31d4902bc206898eaf. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CLDD29400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562d02dd138c33b149014f261e36fcacca7136034dc364ada8932721f030814d. 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/CLUM71800032.
Miguel Ríos y las estrellas del Rock latino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc839a46124086db8870a7f9979811d9910ac7c87bcf9310451e0405699ac07f7. 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/ES5320100910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bffba5b0c7cb6b52003e854d646b3a8c1101c2c29b4864958e0ad86464e68e0. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/MXF151600002.
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 0xe1fa5d76c1ba59a3899380f25865d431700a876d548dfef431fe1a3d8afcd0e4. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/CLDD29200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2019cee9687d196d03ff3fe8f75dcb8f441e3ecee32748e1dd94a449bfd01d28. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/CLUM71800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355f4745449595d392ed5922b1556f6c26f82ed3085e904f9318a7556e090418. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CA5KR2021100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c488eaf2c8e633ff1186fe2632e9cc608b202da8a20fe07526dd4e9f65b4dc. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZH5R2000083.