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 0x079bc32589725fb621fcbd02120e31e0a377830a61492feb91357945df4dfc32. 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/cd5c1575-0da5-4ac7-aeaf-04e1f5d7aa7b.json and https://artists.proofprofile.net/proofs/artist/cd5c1575-0da5-4ac7-aeaf-04e1f5d7aa7b.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 0x2ea9a225ff3cf67ee07a4b4c969985ecdba02efd8fca24b26b00214f5c8c0956. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/RSA291700212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0241c74b51875ab12954d3a46a8590cbf2a5381133bf1199e72b73e4394b007f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:04:47Z), 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/RSA291600665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02bc7a2de18a04a735adb2061678d1dfe488bb2eb2df7608a691d08589bf152b. 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/RSA291600667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775f1684e828110298e6219a6db214418fd5b02665510e62dda583a24f2ec819. 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/RSA291600664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeadd664d2a2412af9e7d67d750897314137da26def987325c377f37b81343fec. 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/RSA221833146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90762769cd71dd142ecec6cc1041f2ac1a26508a6f5b5ff3848396dbfef5fcfb. 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/RSA221833147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c1ecfc29d2201cbeb4784edbeece8e83890d8b13cba977f3af121193f677d9. 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/RSA221833151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9914b84a13dab4b861e8b19d2e05d83b0961a505567892f7b76d1f23222643e5. 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/RSA221833153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6d0a5aec4c5557eec930a1786854cc596326c9f7896d09395bbca93efb4c2c. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/RSA221833154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e809e0edbe1d9713022be98a95a4c2baed7ea156f9978890ae2fabc935a473d. 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/RSA221833155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe856596264521c9b56d852bd683d78cc74c1482dabe8b848e904a13647efae4f. 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/RSA221833156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f33a3ccf050101555a4549c60d2a39c863e9c16e0c429326ae86dd20faf4bfd. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:26:29Z), 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/RSA221833157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ea68a6b5080b5b9017a1f15e0cf7a55b8b8ee89c62e648bd50f6072e4b0d5e. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:50:12Z), 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/RSA221833158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab7c0741c2f9c6d7a683a45512ebe700b099c990a2cd49b743a81a58fb60a60. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:10:13Z), 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/RSA221833159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93791b086437a4f3915197693b067d982b6f98d2e2edafb3661e1d4884d633c9. 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/RSA221833160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486342b5dcd322790e7fb2825a502c532a52fa9c3410cffcb3b6bdc3b3620734. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:22:08Z), 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/RSA221991038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1b1eb2323f2fab381a0e5ad98e9d680cf5883034fae4c174e94f9340e56991. 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/RSA221991074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb36880d20c3608578631c3054bde261fe872c98c0319b665d22995bddf02e91. 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/RSA221991075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1b2858fdc67c09050acaadb71bd2484a30e8704445c6bfe0bdba71937575de. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/RSA221991078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105a48cd6e3c73f47e9529721e8af22ff9da0ca9f1cf8dedeed713f4b01c0482. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T01:03:45Z), 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/RSA221991081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a0767e87a400a53e8efa5873b37d41e68a0a4dd283aba59a8cda6ad0916de0. 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/RSA221830096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27d5d3cec73299e097484aa1dd40459e4acaf247fbd1d06ca8f4e33919b78c0. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:06:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RSA221830097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bbb7c15ca80fae037ed06a9895c4f03c6312a5733b9424d71e03e516500ba6. 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/RSA221830100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0cebcfe885e0e5d811e391b3de0713bca5078a135b4852fd11bc5417c8ef527. 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/RSA221830103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b4ef427eabc5a7ea1696e3c48f543262ff8d85f142599fcf4ffaf2698e82eb. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:34:48Z), 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/RSA221830104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7442dbdf5f9c9f701df19592f53e002fdd03ae2edcf78e0f46cd5dcea8389b. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RSA221830016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8796eb50dba306c6759ed47c92069286faef189cbffae57cc0fd8b8812acda. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:55:08Z), 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/HRA041583088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ded2e0615d53f391385448372bba052b3dfa2f51025f02b6f751357697c833b. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:51:27Z), 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/HRA041583089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31ee82c3699ed3d04427f34f9f5e7951c01ea636cecea54f4cda3f5c6aa70fa. 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/HRA041583090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1415c9986c091c4db2c1a7a97e5a3b1ce79822938a2b36955bd3effeb74bd3ca. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/HRA041583093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ad3ac8c56040d3c2eb0b1645d51b6a638f294d07081ce9e7d01585bb910c8d. 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/HRA041583094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce679033a9f22a47b7b77e7c56d88833aa3770cb2b9adb13d365a784a7ec3892. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/HRA041583096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad40d8794cdf2a50d1c3b3e9e75903ba6d4c26d2c861c5d33a71f5f6a7dae55c. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/HRA041888542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc41a50c0d52e8b0e4a4db4ad29334a1689ba8fda06e5c0c614434822219595b. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/RSA221820014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c53af47d6cc52dd7e7b999e1a1d9b96e22570ed0033179588407abdac6376b9. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:30:28Z), 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/HRA042093664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea8865f730e02f0c9f8adfb23933c36c94239e97337fcc9310caf092d212ae16. 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/RSA222010610.
Ako Te Zaboravim - Live At Arena Zagreb 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544f4b20f81ddf9a5751f58225b9d31ee145c3e046a2d69022b7979650a6adfe. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/HRA042197234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f57dd2dce02fa841b32dbd54d7090ed528946d9761b2b69cba4422dd6603a7. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/RSA222100289.
Sergej Ćetković - Kombank Dvorana 2021 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6343912e18fcb256a08797e13a07ff8ac532b9177f796a1244f7aa27b9c00e. 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/RSA222091687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdfc24aff60dad19445c4cd6e7778b498fea490b264b5d37a7781ca221031499. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/RSA222307247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4a1c74b2fde83a922cd7fa1a609c18f3da013339fe08f7adce8931ef3d0e52. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/HRA042400716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d240b7a615a280d3615f9a90b52d4b84be4b4e6516596a82e0147ccf1b3e83. 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/HRA042400717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac868a79e28fa507b895df055d6f0e4ddaf59c627ba9eaea6804007484c4591. 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/HRA042400719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c0f9ca447d1d9c2fe2f1f2a18b9e4e6b1f5303bbb4e6095f5d21385d7c1f90. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:02:28Z), 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/HRA042400720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42538dd9eed425675ebc63bebcc8b877a163c54d72b5e49f24bb318d44966977. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/HRA042301457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305a2e2812c3b979e16487fca39db905a3a34527e99c6d819586c55b26e7379b. 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/HRA042400721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c75250fa499f4eb451b0fcedbd016bde34f5f9cba6056ebbfd417babcf1744e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HRA041583049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb132fe6b3c2d7c024422a8a5ed4607590952bc007915b04153702cb7a7b580fa. 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/HRA041583085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095d02322e0e441a485b4619154db0ff842601525933b9714a1b25c4addcaa68. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HRA041787824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab9b71bdad7c1a5822617880d7e300fbbdbba499590fa9e94bf9e864024c7cd. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/RSA221834644.
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