The Dreadnoughts are a Canadian folk punk band from Vancouver. The band combines a wide range of European folk music with modern street punk. The band has eight full-length albums and three EPs on va
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 0xdb30250feaa86b4a43b5315800a69d7456ce249c4169b71794c04a5086caacbb. 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/bc1d43b6-e059-4312-89cb-b191ae1eb81f.json and https://artists.proofprofile.net/proofs/artist/bc1d43b6-e059-4312-89cb-b191ae1eb81f.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 0x092c148bdb790cfd763c59f680998a44f9b226ed6e0c1f5bdf2a99f9bee56036. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/USHM80852324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fece07518b67502207d11d773973f01c3539dff12016ed57134fc1f81ca8b16. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM80852328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b4ffe629423f27595d04b5c6d0941f6598cadf7c87db3fc4f8a6f84838dad5. Chain 2 (Bitcoin): anchored in block 957676 (2026-07-12T08:20:25Z), 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/CASE10900090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4436af2841a5bc805d717917787f950f0d345ffbcdbc7ab9d2832282426b99. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CASE10900092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2c3ed4eaa965c454f5a300bbe7b98df4e04a80b5012038e32dd9d531b09150. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:21:23Z), 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/CASE10900099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0aa2eb6e39fbb058b95f62dafb2e8a36959bc0cd1774b45a655b08df977dc8. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:17:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CASE10900091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3ef1994a95b361be3c8ba9afbe23b776882349930feec356998288d8d364b5. 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/CASE10900093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709d7ffdfa23085b9c28395dd2836b49990e669b8a88cb07a1de7b024aad5607. 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/CASE10900095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232cad4c4d7016067386d841340e20462d7844ee18a39f0d192c6d34a0f6890b. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/CASE10900096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96921b78b8215e9c78d56c0a553f46d116ed039bad50f499fe32106f7136b6d4. 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/CASE10900098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2e97f25fe175b54c9fa0be843ea480c6a466fe64802190839688850d321ddb. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/CASE11000095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694687965ba26e2c285adcf8cbd68833326643f6fc25ed91b3d6992abb581950. Chain 2 (Bitcoin): anchored in block 957723 (2026-07-12T15:34:17Z), 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/CASE11000096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd001103a69492f1e50799e195494ec14e72427071678c3ca33d992baab66fe49. Chain 2 (Bitcoin): anchored in block 957717 (2026-07-12T14:54:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CASE11000098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b309db4433419830bd776b51146aba3d1bfbf7445dcf005830c1fd07aa6ec1. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CASE11000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef806bc0a3c75eba72bd979d00e53cc226e7254a3cabbea55e82e56be40f5eef. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:56:49Z), 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/CASE11000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578f2809e57cbcf005e412c3bb87d6507b88ddb0a146ace4feafc0d215a2ef68. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/CASE11000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c088c838a7af314a712b7fdd90edd50ef53303f6129a40430ed65aaf4bb514. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:01:18Z), 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/CASE11000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ae0144784c551d150fff3972f819dfd362ba27005fb507fd6c8dc54661c3c7. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/CASE11000105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ed07563f0e9feea69c2c60cc3ad470ed6d77232ddfe24081f19053e1562a6d. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/DES871113912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a535362828e81e9a6e124483261ae805779c2e4668110de93ffc9242bef7519. Chain 2 (Bitcoin): anchored in block 957705 (2026-07-12T12:50:42Z), 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/USHM21101083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef65076fe85fc997c16aad36b02aa0e5a1ea741bb4c7ee9de89169b9bc551c9. 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/USHM21101087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59065b77f8908bb95096f1efa830761376ba00c9ca5a20f3696a4523b44c4a44. Chain 2 (Bitcoin): anchored in block 957717 (2026-07-12T14:54:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81736639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554cef57003e883e4df540726cb279390d34091a71e0c7d379535ea0daab1973. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81736645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb42bbcd218d716ee870609cfe678c5c4e58c3d3991d7b54a39ee2f67c81a9f. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81736648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6726dff365de3d2cc37c97c84cbb1ba4fbefb33cc2fd08499d8b5edc86c1316b. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81840771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23434a7a06e3175601d882018cef15410316ce6c62529631442041ffc77d6ae. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USHM81840772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06548f34f00e5d54744b03aeda064bfeac402c43e0f38ac8f8c765145d34d68. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/USHM81840773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf326d5fb3114b490de2bb572c457a5f37c4ee7d4dd83a4cfb37a7c25093a3c53. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/CASE11900086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d395d197573fa5d3015162dc65e104568a9704d0614bb148d0dac14bad1c53. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/CASE11900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9787ced455222b24e835c720cf99348bb330854ff5fc69042439f75f6923cef2. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/CASE11900084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7e3dc7820de729d069a9dfc2a145c32179cfcd9c2e257dbf140351d7ecc68e. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/CASE11900087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0d8b4a55a9db66753f9fdf0b5ca5326eadd44ddebdec1f021e6670f6116c15. 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/CASE11900089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f358259ec01f3a5d0567628cecf613c45a82f79716aef9c721a095669366c2. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CASE11900090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d10a6e89f19215f511bd739740736c073f7b1f662fd3d9fd4d8fdcbca51000c. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/CASE11900091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f66f2f0e62afb03a01cb0d50d0e37bdb3302b3f23b9b55e56b104b78a3d001. 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/CASE11900092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9d652d3a597a8e368c2405a2d50b33a61f04326ed2029e1f74165dd741c29b. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:04:59Z), 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/CASE11900093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42303b3cb9d1fbeb1ff66d6f1bd2c6f7c6420d39b4fbe23ac95f28ae2ee657a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CASE11900095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9548932bb28d1d2fb143038d431bbe6a534cd5b7962564e2c11a08a017c0a7. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CASE12200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3ded1b42451d599f0bfb23c73e0bf3fad15618c895e69ddfcbfc6de926abfe. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/CASE12200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f37ec3d0470244398a767eaaef5ef9cd7cedf492907cd16f117146a4f3a257. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CASE12200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d35e81e60955cc39fc888530de76985bd99786ee5ebbdbccc605723d5d7461. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/CASE12200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d243ff2219c260b82db326dcf0067bcf15ae3da67cd113a4f30a6684b2dece. 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/CASE12200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c6c841480fa85c6ce0815e0915ca754880b626a1c7fa238e9949ff0d9bfed5. 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/CASE12200012.