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 0x6c8b3e52c7e51587e50528c837735361e323f6d165242a495f8b8617793441d4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da462ee6-bfc0-487d-a84c-4155a78a4001.json and https://artists.proofprofile.net/proofs/artist/da462ee6-bfc0-487d-a84c-4155a78a4001.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 0xf0ab040fde54cf64d27b55c93c0fa2bc313b0dd2b243d635c8c622ca1c1ea48e. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/GB8KE2323481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce8565b7d24bfe496a1a06cec80449144f725bf3e25864dfd320e90b4dde99f. 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/GB8KE2324518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea65eae8cbf0ecea09fb4af1862a4db4a9828e472cc57ef30ee197a961aade4d. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QM4TW2479861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91aa907cff0157ea2a8cc9fe789427cd71b11913e199f5959569a7db64abfb05. 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/GB8KE2403060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2ff874b81b71cf6c8444044a110a06190d23e090cdccdf2bb4481904264a74. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QM4TX2439588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a5f9678e1be70463f803104f5baac5d31c9ed6ec88d8ccb6e1518b1b79d9e0. 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/QM4TX2439622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4adb44247ba9eb99a1c8acb22c5aaec41a37a3c5024e12954de9dbc4a64dbed5. 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/FRX282408025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231790ba998f08f63b356d6049e3b21207332cb0c6a15ecc2936e0ebbd825c87. 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/UKZGC2404033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f78446198cc45823084559a6e5ddb1e03a065fbaca6ca6847f2c970f1b19f4. 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/GB8KE2412237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414cf57a0d9ad0a06d001e81b3fbe25970731b5f4ebd8ee008691f22ac1b2435. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:02:52Z), 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/UKZGC2405978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136573da65b7d8ea654c84410baa7b144ddbcb237bdd02e29ac476cfeac5f7a7. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/GB8KE2415209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aeb0e8aed4b03513a0d8ce54f1eb913a830b89afd54aa2029c53b6eb4be3f0a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:14:07Z), 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/GB8KE2415210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c39aed44f4df9b2f31bf704ff5ce635b7860adec7f2a3e8b83a1af56d60479c. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:26:18Z), 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/GB8KE2415207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413e2b0ec8a6cbc840faac421ae8571619eb6446af0c7b71cdf4b1c81ce2d3c1. 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/GB8KE2415478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc019fe635633a47859445bab014b9d90019a94b70c2d7e0f7f8e3f6d49612740. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QMDA62463055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c06f382bdca2255ccd539281755db285237f9f128bfa7215acd01b2ab76a3f. 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/QZZ782478223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54720bf0ed7c1462d0fa17d53f5712a875d9d23c1d8edc51bb3eb7e8785d5a01. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QZFZ42565310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e65461a7dcf59ab7f133ec65f814854390bd93ed678593d38d4f941752c974. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:35:30Z), 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/QZFZ42578571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f783c0934f4db7dc1a8a4a1b21e646007cbc6a12f1ef4625b290ea8234af4e. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/CAR072500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa344ce8ef34d13292854f41535c47f70433a47ee7e989334e00f9d9104603ec7. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:56:49Z), 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/GB8KE2504751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d6b3386f267ca97983b0759d2c46aec6cf1eb66a34da4aa9bb593f49a038cb. 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/QM4TX2528855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579be868a4316a8ed2f528fb39e63af3bfe0371102d68ee647a47e9817e66fdf. 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/QM4TX2528856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7e7240e3428ff37e7d219e9858042a5ce7490dfa16a77cd7ed6ef8e07f8bcb. 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/QM4TX2528858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ad4fce03da86e3ac323c25163687264b0a80e8f3fb732766656ec3502e3a8e. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZHN82540093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76217bfe2021804e97ef658b69e6db69824510a6525a9d2d8ae1236908892627. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/QZK6M2521082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaafe46164924e867897637af6608e3683fbf6a9efc4bceb0ffc3063ccbd44c3. 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/QZK6M2521084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe82a35ccb056086cc203c91c82a9bde04d327cee838c2b7b5571dc3484d9934. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/QZK6L2538247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15f159eb754687b8738ceb48f082bdf7a97be2abb730252d1ac96c481599c56. 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/QZK6H2536062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aecffab8500c2ba2e6b42f2c84045dada75607780467ff495f31d03987feac3. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/CAR072500112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3eafb11f1e40c47ba7635108965feeac3c84b4880760b383a611bc9f673e21. 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/QM6P42565994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ce2772c3ee23895498858bc81eac2c71a9207405310a8663bf1b92e58d144f. 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/QM6P42565995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9c7f7f8b909dd16ac92c88bfab1a77c4de3e4253687e2da66a6d720e1aa95f. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QM6P42598413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4901a4ebd91a5eef7fb3d58e40615744e07cba4e1a868b19d581f664b4d6ca. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:58:19Z), 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/QM6P42598414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b951f7c6d461bbbd5119c935bdca9c941deaa1b3251b67aa099205dd68dd2a. 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/QM6P42598415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80870caf0155899560d7b5b2727f8fdc3a862acfd7edf5c896a18cc722120420. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:49:34Z), 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/QZNWR2545474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1853207e0a27b6ad73d7b13965eaec099f49dd524c5f94a87e89077d97890366. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZTAS2561940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4e72e41513608e5dc1981c527230e9671307583cf771a5ce2788cfe7b20b86. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/NL3M12514216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc525e7c1025f1d6439b07e724d91ff6c4ab44a69a371f521e81b93f4135793. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QMDA62592328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2f35d96b4841da830c7a26542ad775e842f6ef6b853a883cd15959b1501db1. 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/QZS7J2593977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b928fb013741748b961ff8dbf235a06ed234ab79d5263a489701cf369aaaac. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:46:03Z), 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/CA5KR2588796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77de02d0e34dbf923fb4e2b69a5d93d1d48621763026e8d0ede105a48647fc08. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/CA5KR2588797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a4e452b7e4523596a3f216a5f412ba9f0c029c8425cd84827a0b80b1478c8c. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZZ7P2548092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e49f5b94515ec6c0990c811f7d09749d83a51b51c76fed226579ca7a76efa4. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/US39N2503480.