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 0x417e7bc815b974d9848857936b8def175d74b6e7d896fe0ed64199a1ce1e32b3. 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/1726fefd-d982-448a-933c-845cced6f40a.json and https://artists.proofprofile.net/proofs/artist/1726fefd-d982-448a-933c-845cced6f40a.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 0xd5ef9f1956c136d711a20116bafb35a02b5b8d6eba71cd2c9b9da1964332980d. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/JPZ921803006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5b35fe5b45bd45efa0c4fe1fd7b16493330046fc8bbb934b769d2b1925a227. 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/JPZ921702301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc842f443e76ead13ee2fa6d407ee96dc1af8e9f2e53d66cead1c13f2799b6b42. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPZ921803008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc75074c114373e7a2fe2acdce1d313d55f8a2dfe82684bc1300a5d0bd454d2. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/JPZ921515788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea3e41217fb3e1b0ffd707e35b0ea04b386293ce52544c189daa93a7e0b5551. 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/JPZ921803012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7623ecdaedb17e21ed00e77d6ce5ffef2d661a1575467e30b4b7cc19dd8ab6. 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/JPZ921803013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989b4a8c9ac6c47ad86d5f6c2a9db1b2b7dfcd3a88abcb36b35575df787c3817. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPZ921807963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0896455687c21f5cdaadf4f23bba77359a0ffc2b45c6e54ba64d0ffd283afd09. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:05:19Z), 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/JPTE01908860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196703a05d1a4df3903cd71f9a8274817355dec146c105503f2892d618422617. 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/JPTE02004810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0970ef1d518ec97a6362683828bd2671593d77f00613fefe2df2c81d9927558. 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/JPTE02007560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c94108383a3e49d39342bdb1f02373c6027140d3c8e3b4f6e7ce685535ffa5. 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/JPTE02102990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901a1fb30aa36c6df6a48bbd8f65dd02ae0bcafd11359603b270925f01ace08a. 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/JPTE01908870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32aebf597f0e1f6b732b924d532b06783e4e1b7c2f2cc68c49dc9ec7caa82c1f. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/JPTE02103000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b8cffd5ae0d2698ad3932fb68cc2249803f550c9b569a2bccdbf5d96f9bf96. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/JPTE02103020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d49a0f66e220b277c8b81de5194e96ded188e6f8da0ebc491f4bd1fff0711f. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTE02103030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0bda4b88d40e63be6faf0768cfce4f00474456b207579c53e610fa48fb46d5. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:08:12Z), 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/JPTE01908880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225d17df3b42ba936c4f0ea7bf40c87d595be6489d4f837bd89af3a871083ef4. 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/JPTE02103050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c48c9a07d9e077e8e66083ff00598da9aa34d0d6d0c10a93af2fec065e5e596. 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/JPTE02103070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2331bdd34baa72d02231e0b90bbd31560f88efe08812eef5db10144660d03115. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:08:21Z), 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/JPTE02104010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bee323f190c4bbf56914476176188043111aa8226983e37d58c6fd49e211670. 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/JPTE02107240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4e573bb1ff32768f01899ee28b1cec042aabac40540c91e20e167876a595b5. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:01:44Z), 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/JPTE02107250.
友達の彼女が（オリジナル・カラオケ）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29327f4b1a96be2df5d9e6c1eeb0dfcf013156a43dbedc66ee1cb0dcb7813ba. 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/JPTE02107259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0f55cd96e39f44f8354f26428184663374aaba72891fb67a0d57c8b30a2f0c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPTE02203830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a4879894c1357b1e113fab6f252e3597315f7deea8323cc761bdc33ae2bfb6. 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/JPTE02301200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02852f120237928df6f26fd514431f4c3c0e79887f9e0edcc37eae4984914e59. 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/JPTE02301210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4db48fd4f3e01d30d709e23ca8fec6373f90a234e9fdff68b691117cfc53792. 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/JPTE02303390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc583cb386093e476f63b25e9d27fe9a029ad6118fb96b77f22529800977519f. 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/JPTE02400910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca5023c5e7811478c9a30d9244cd178663c10c41cc747e37c11dc04d05b1115. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/JPTE02400920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5418d9e5688860e31cc865d2dcd9377dc36d458a28883b309a8ab0b88038362. 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/JPTE02400930.
真田ナオキの世界Vol.2～ライブ＆カバーズ～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cb300b6ea6a00392cfbb1bf49f6d0fe495d856286cadece61b6f3c287b8371. 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/JPTE02405200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb60b6832dee7f29d615c5645b4132652d750ae64cb7acfbf09f2f647e61319. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPTE02405210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4eea37e742cbebf2d902842c6c21cbbaa24a3d111cc933044871c92adde54da. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/JPTE02405240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf942ce99b203aa7030df486f62db9a4f1c8108b1092348bc04db5c06915f97. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTE02405260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b888281e1a466a132d07b72983ff93d1ba4800b00800670ce3a02e241f7aa6. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/JPTE02405270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9ed79a563517d7c02909a856d0ace743cb2d52dc19827b6116a0e54307c220. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/JPTE02405280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed1491d5f7631bf97e57e47afc3c95530c53213f0e6e942700a683c7633b305. 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/JPTE02405310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf605d4176063aab98cf0e96a3eaa9af07b47aac43fc93d0cd297ad5ca411d28d. 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/JPTE02405320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bee60568dc7f75b6ff725eebf39dcb0b7efebf94731e486b3f0051271ff21d3. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:42:53Z), 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/JPTE02500499.
昔・・・中洲で(オリジナル・カラオケ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5d8c404d7cb577a3a9d3a14ad5aa8d499e5b02d3a0b2e40e5aee2659b551e7. 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/JPTE02500509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e32817c8ce76ef86322393d6244e4bdda0f001ca00e701473c723967be7bc1. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:10:13Z), 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/JPTE02502130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74af00730500db2f558296e3cb5f6ff59146e773ed0bce18267cf5dad26255c5. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPTE02500520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1620912e1a67959d9a7edb97b59bca9e33dbc278b9c6c7a68ab449deeabecbf0. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:51:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTE02503340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951b655405e56a8ac314a8bc06a7ad4391f1e6bd6e123a1b40aa0471aa702528. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTE02503350.