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 0x0a83a189f5de7c8f9abf9c5c7f3687ea8c60eb648b7945b6c290849b92eebbf0. 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/2db5a942-c7d2-41a8-a545-6272c0fcccbf.json and https://artists.proofprofile.net/proofs/artist/2db5a942-c7d2-41a8-a545-6272c0fcccbf.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 0x9641f5c659c30682daa7e335e1185abe0705b7e9e9915f6c3b20775cc103e5e7. 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/QZNWV2163743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a95391d3c8be026627f5faa93f420b47f9e6e3e470ab1464b71f85b2db2214. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/QZNWV2163744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb951bc22131f4aaf9ec94c6336c3cf8fb70f9aecb52753729d103790f4a563. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:23:13Z), 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/QZNWV2163745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc357bbbd99d7a765e9807c8b75a36abe78c6e1daa2dca7e33a1ae035082c270. 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/QZRP42103047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8a326868f33211442c64d3c85f6aaeb8a816ac001492279b26201e12013149. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP52189818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8586ab3650c728346d066ec16a820d6cc4da9d86be6726a5f2c5e32b104dc675. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:08:07Z), 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/QZRP52189819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1428ea419120032aee5b14245e66995cc86b3267be34778218a1ec512e584f99. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:23:31Z), 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/QZPLR2146547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41fa9fb966a5be5da15a0ed6ae64ca0bf2f6e2f06ee81f8ef7b04d274f53eafe. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:24:58Z), 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/QZRP52189820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639a6b6c5acf07207d7482f794f3241fed780576b0dcbb084938aba2381438ad. 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/QZFZ22222679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbaf6d34dfbcee43366e983b9ac2809955e3612310d543e026ad7ca76d0bf0f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZFZ42260794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd266c5ce229957e4bdc32ef86b4aa926253c5a52de3120613cd089f3e28857d. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZFZ42260797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d1bc7d90ab815bf32c5016938b37a88d2ee58726fc4ea621e6a651c85db53d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-19T23:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42260798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061317dffa6fb932fb706b8588a0238355733053c3465b8cc30c69635f46438d. 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/QZES62279440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061317dffa6fb932fb706b8588a0238355733053c3465b8cc30c69635f46438d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62279440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a3d5731b6cd7212e0d6c99834de35c93bedcfc1a8958792e2cb4667483bb8f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES72246470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279a690a8642be5ddd5db271536bf4a29746eb3a449798cdfea32591fa637901. 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/QZHN42291549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd417559ad4509929bcd52f6aa52dbea9af68155f79d1d016dea9563185e1f150. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZK6Q2296187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15a7b650c3e799181669f773078a7300bc9fd5e618679598be60047c4f60afe. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:47:53Z), 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/QZK6Q2296188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38acd5b099662c38bcc0faa2e43143cb57d05c8c6875acf92e9d9d061ea4394. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZK6Q2296189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72524a70d02456bcf5ea688d3475de99c649c3dd315e79a1296c839f94ec5ddb. 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/QZK6Q2296190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8398416fc5d06f1124b391fc1ce31a09ada21cb907d43ed2c8669327a3dfd23c. 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/QZK6Q2296191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7daa28d7166ec886caf1091324cfb5e35223ebbbd0ded5351d50081f36258e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZK6G2249129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437384eed6c56f07e9e9ba8931e452bcd8181a6f8956b976aa131bd905de902f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-20T00:14:52Z), 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/QZK6G2295095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa077d77f667309315fe41716588b07fd6af57db0e711600eeb68542ad14efe04. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/QZK6G2295096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x942e383dda8ae49c83fa90117e3e700d6b7e51a595f2d7a4f6100cfd873dac0a. 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/QZK6G2295097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c28945f79f82064800ff813aa744019cdcde564a0aec390d96c4d28456d341. 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/QZK6G2295098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa887569f18bf730d119a6f4ca88f77ac0cc36c5bcc40a1b7bc9b19d1b4c87366. 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/QZTBA2216220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d093f2f4ba820a126f859cface687c2fbc14890ffe76a2738a80db06dcdb3a. 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/QZTBA2216708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597b90fc9f099b3563f16981d52b049a90b27e1e89250d1d01c859f86d5be835. 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/QZTBA2216221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bae5e9a63c336584440dbefa32b236dcf9d156e837aa5615c7ff44c4494bfd9. 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/QZFYZ2326830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178dad82f3530165da174f59014a22431590d8f0873eaa0e81145e25abb1edf7. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:05:24Z), 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/QZDA52364169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa165e8b91b3412dbf2a4fea0dfb3be0a659a9f4a239f31fdb07eadff5db97658. 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/QZES72351138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8afebbac82acecbfe684a492cfcb2934dc75a772b96f0446b2951c5d0d11a78b. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:21:27Z), 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/ESA092319507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5c39b5036a1a11e38044344376f3f53b7077d50af859dbcd84ab39551dedfa. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T10:33:53Z), 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/QZK6P2417278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67a82cb6e6d00441d08164aab02c323ebf2db59232d13d9df130faf9b61c321. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:35:14Z), 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/QZK6P2417280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4591bfce3ccfc89e4d99cdb1bfe2d68e5fad741b9b4c2a68a6231b5cb49112d. 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/QZK6P2417285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d37dcd894d4358ad6b1924837e023fa8b1d408a634416c38c2bffcd7bbd2499. 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/QZK6P2417286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecb3d805d6d2756a0465a8528ecac253cf936ffe427e3713d14a296958bd50a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZK6P2417288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5afa0ad30a17c65c43c01da79d2b84e2f727e13f22a146fc34795d665c9796. 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/BK4DA2447703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e6ce1033e40e3f9fb64f2ca36281823897587f3dacf4b862c651a8bbaeeb33. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZK6P2248827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9afd0c5f499ad792ab65cdeda0b0f29da01e45fd48c67f8d088b89389ad399f. 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/QM4TX2432030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa663914bf724291525d8e7554e0267ed283b8aadec9ec24b8387dcca7a69d93d. 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/QM4TX2308040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6181bcf3819e9e9119df991d3d1967d983c5a8de6232dc5e7e5486c09aea4a. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2206385.
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