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 0x1e1636686c19b5f8685ad7797141b0262359875a6d7d6fc897f8596e82a37f24. 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/f2649805-5737-4e41-8a35-3b37d8bdec46.json and https://artists.proofprofile.net/proofs/artist/f2649805-5737-4e41-8a35-3b37d8bdec46.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 0x6a524bbbfd1f5c5808a6af6e8d85f65eac7137dfd8d59f39b23f2ff0c9e80273. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/TCAEJ1948003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7a49b0bc20d4a0bce6e873b258afef150c26d7b84c8f518a70b8332c761a9e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAEZ2010850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d8b0add7a3c88c7879a85493ee7bc6a11e5e647fe31a8dd7af35b739780ee5. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:53:15Z), 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/FRX762174248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86dd0e5f3d798f6f00f975a6f24249715c809543317f30e17f58b9e02cb7478. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:47:13Z), 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/FR2X42219538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc276bb7c67f443eb380ed4a8610d6a3883e1793f5beecbb6ce24739f884904d. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:08:41Z), 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/FRS182162084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb876b3b7439afb4c4e05d4ce0083a2ab1cbe6b34e2f24a5de9a2a20f931f79. 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/FR2X42219537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d8b0add7a3c88c7879a85493ee7bc6a11e5e647fe31a8dd7af35b739780ee5. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FRX762174248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86dd0e5f3d798f6f00f975a6f24249715c809543317f30e17f58b9e02cb7478. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:45:38Z), 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/FR2X42219538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ded1e75ef5039c51316883d42bc51f59085a197e9ecb13eaa514c9d96078964. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:36:15Z), 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/FR2X42219539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd9788714e67ecdbc95507ce42238cdbc4b302c77406f79cae8810472edf21b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X42219540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc276bb7c67f443eb380ed4a8610d6a3883e1793f5beecbb6ce24739f884904d. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/FRS182162084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841bb128258434eb69abdcca8ea43600392e5a86890eb8539b67529b9e09ec35. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:07:46Z), 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/FR2X42219542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c7ddc0e93e33442a9beff798156dd160781ec96fe7d9afd68abdc70be07cb8. 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/FR2X42219543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea9f12d6655c1b35ec1e89b00bbd3cc949b1d84e2d099ff588c2da02f3b7824. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/FRX202232278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328e71f9cfc2be09d16ddba5f9d3126866668f205dbd76a1cb41189b68e0eff7. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/FRX282298402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe37a69d83cf89a94758b9539caed5045d75ce884b84624d7b67684f9c776b9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762292071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9e1322567fa399769fd8a62259aa7e79a3848f2bd5c20ec29df41342e28a43. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S2304948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed81ff30792c9566be4a53763bfea3c46184b0efaf74e553f2b255d1ff3d2037. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/FR10S2304951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c227014553fc094c56dee0c0ddf32de15f4218fb2d56670c952ab51822cc35. 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/FR10S2304955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbde335396f7b2f4c7cb0c96c5c071c27d69e0c5e55a7a0e6973fbf2aa9f815f. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/FRX762421569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa41602b6b29b2df7989675cd69f4a3d6c57534d113182b8acf63f5801cc42b. 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/FRX762421572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25d41297924cb129b89c8a9df4b2df2ba3783dd0bf61047d7f411dba4ad4e45. 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/FRX762421563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c23fa741f78b61e0ee6bbb603e555665e358f616ab47ca17a341afacb7197cf. 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/FRX762421564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2323ea84485813356dbf91b7bc58a000c8e98b5c29fa7ba4fe5123621752cf9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762421565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8d35de5e4aba1a019f31953ef8b0c3eec2bee859dae5c83e458e73798f7d40. 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/FRX762421566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61eb4724143d821883b6675b3f24c5af09c3be9b0dd0e1bf0d7263e4e3c53e00. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762421567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8984d7c7c9a9cd9b63624a8154e5047c01c35f2fb813936c8108d037ff19885. 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/FRX762421568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f84fce42d0935b726cf94c742e79a67b97917bb5eb60a4929f0ea8f0b4a3fd. 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/FRX282419644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbde335396f7b2f4c7cb0c96c5c071c27d69e0c5e55a7a0e6973fbf2aa9f815f. 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/FRX762421569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eef17e450dfaa6d123b3da338b8bd4e0e16f8ffe51c4309c5c9d7f640e753aa. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762421570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc175397fd36114e894fcbea28fde32388c7c1cde6444b1b2b194508316f9559c. 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/FRX762421571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa41602b6b29b2df7989675cd69f4a3d6c57534d113182b8acf63f5801cc42b. 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/FRX762421572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607810ccfc43c934658cca2235a196c5a67c7a6307f13aa31ae15832e54b7f2c. 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/FRX762421573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087149dff31f01acf002fa0d212da7f9753d44f2525dced5f4ff4948133189c7. 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/FRX762421574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd91ec4588b7c263a5dbe316cfe9f9e72c3b7e2e291864c2b3fcc8916d9f0a0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762421575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883f76c2d2d09ed32748b2ab1fcd74b0ea6d3ea985a068eecfde8e549323bb28. 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/FRX762421576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51df47be3d4c31a6d200bf13f8f174ed98eed4af74b438b7506f21b6414c8142. 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/FR96X2446040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd14832503bb4ff60cc40a65b206d235fc5ba0ba8130decfe4c1de264695afc0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12351252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36a1902c36171403939b32137f117006050f52294a17a63f62535b00fd9a912. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRIDO2314317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a7518eff0183068f83594c5effdd540d197ad4b95b8105fccb14762f2acd47. 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/FR96X2256755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd14832503bb4ff60cc40a65b206d235fc5ba0ba8130decfe4c1de264695afc0. 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/FR9W12351252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff49a2b407758e12ce93dffbed08b0f157629691701b11ea1ee94b619d2b938. 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/TCADG1748949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4697c7e6e64a873569cdb09931954e3cd5d7250dd66407b6106e352221c3a6f. 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/FRUM72400372.