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 0xeca39f426655071e2dce2823e584d1e7026ad12e293323fe6a770d33fb67fa24. 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/88f59784-cc7e-4ac1-aa06-30a0be7c58f9.json and https://artists.proofprofile.net/proofs/artist/88f59784-cc7e-4ac1-aa06-30a0be7c58f9.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 0x084ba74999a2994989c501237ed7ccff00b839c0d99c496ba2f5d81541047b73. 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/BR4U21000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15609971765d32177615c639e6bfdf29fb933311434345e73d95786e15bdcc31. 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/BR4U21000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda693591689d7a3c07c2f9d48576461b57bd09375978433f15b3a071d0390fea. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/BR4U21000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c55e72b990d4c008e14a0d5998c61fc25a0c452d086d1a0e8371bc918124b2b. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/BR4U21000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37c174f0b9e1f9af912553cc8553786067a86e207c5e1a2529b95311e9a678c. 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/BR4U21000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2099b4daf41d396c91a792195fd548986ad8c49480f91783fce2a14508e8f2. 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/BR4U21000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f88371312321b91de39b0ef380e30ad1baa0e7d68da50e584a97474954c9e4. 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/BR4U21000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75f56d17ba16a9dea881558cefb8234f6b7addc41395a3bee2ed5b7d38e7f5e. 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/BR4U21000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c1413e7ad35b6c7c6da1a450ad1358698f2bdf7dd99e49fb9c354b3d43cd54. 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/BR4U21000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190bb7a205b74f5652d1a28bb654032da64d73300fb81dc7539089860be5c3a0. 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/BRQIZ1400300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf69c9560239a03409e149d4b7f8c74931f0f7ac36dda88e3d2360410ad0c82b. 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/BRQIZ1400301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f105ab133f9222d2bd53176b49a38f2a89ac03c35902e458e047c2527c71d36. 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/BRQIZ1400302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3cc1c393f3916395f9fb2ccce61c6c98ed798f10364a393e967852f7751346. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/BRQIZ1400303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x317f797ab4292419ea3aa7bf6d2edb127cd222f6de1c8da26e7f1523b96bdc71. 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/BRQIZ1400304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5af78ae7e3d87ffaaa6d6ae80c1ece1a6082dbf1aa6ec12439a0dd6e4967800. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/BRQIZ1400306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd6defad4eeb6cf9025b9ccd564aa66852501a45d7ecf99950aea83cc2d1bdd. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/BRQIZ1400307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c01ee5c22d2d5013c193a3dfdc3c46679594fc518dc636998b582a6a2df1d3. 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/BRQIZ1400308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff1e7f743398724d05120bec3076719587a56a8ab0c908d46a8093826dbd0c5. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/BRQIZ1400311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9738d3431c1c450693d9284c4a06712be96ab0a86f2c3eb5d122f8b2eeb038d. 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/BR4U22000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421abe40361df212185507b9986894ae6c3a72742119ac0b682b55e878991968. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BR4U22000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec2db4505f4e80c0ce2a8f090285a6a14862b70c9f26a08ca25e925a58dc79c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:17:27Z), 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/BR4U22000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f49137e279ff32c68810ba7bfdb4837d6f5662e601b3f33df8d930d00f041b1. 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/BR4U22000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196759fd2fe95f2d4f3615fff83f4561e266c24c7181152d825660b0e5ecb716. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BR4U22000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aabe585c7065436103ab219376dc5410402caed866258b8ec4b5435af4ee1f7. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/BR4U22000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74db405b4f23627d2d0af9660e2e4c8a56936d9961b2584b4eeb51f0b9b82815. 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/BR4U22000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb37f1baa5e0f7957d7c46632014326982645ddfa7f9282a41456dd23e0958c. 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/BR4U22000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e3956089ae929fb8bda10f4b0503999c498090b2bbba15b573d5d1034419e6. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T17:34:52Z), 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/BR4U22000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd07b6af28c167ee5bd4e3fee5e58613c5b8db67962fd2680bd87b2ec37a7bc. 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/BR4U22200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f393f8a31730d72e18a5c5f726572ce738d13fb25d9fc93b3ce915bd3743de4. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:37:32Z), 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/BR4U22200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ee9be6dff92e9dd3f34f721039813559710ef468e7115f721b6726acb03de1. 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/BR90B2202780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93358cf6375fdbad370e19755049893acb95dff4c52a52b00bccc65a3bf34540. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/BR4U22200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43cf0b3a596a0208d7879101a9ab97115e3d35c4b023530f468571b4f7c0b77. 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/BR4U22200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8cd66fd6c94f2557b58a1a872f7d9639fab053e0a7cfa3cd88574c861563e7. 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/BR4U22200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2693313ac482239fe0e9d757cd1118c8614d63c25eb06116cd7bb65482ec007d. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:35:19Z), 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/BR4U22500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5ad63b7e9765de63c8e67abe10876f5acf8b6458bdb4ee056164103cfcf148. 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/BR4U22500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fac0c50cdd24f36b74259a38957238fe99b299d81c1c5b8f125f7d8b845d4da. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:33:48Z), 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/BR4U22500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645600d2b218716f0637481e44a4161e6e0d038c52e56410a47e2a1d18b5fe6a. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:56:13Z), 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/BR4U22500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff17cb13407ae44597a9767960025c87e374bcdee90d543d9cc97f8481a7f2b. 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/BR4U22500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33fbccbefb35ffa70c6b39de89ac82025c2ac7e2e514d56bd5c48f441ca5cbc. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:24:08Z), 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/BR4U22500006.
Music of Silence (Voice and Organ): Gregorian Chants
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2693313ac482239fe0e9d757cd1118c8614d63c25eb06116cd7bb65482ec007d. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/BR4U22500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645600d2b218716f0637481e44a4161e6e0d038c52e56410a47e2a1d18b5fe6a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BR4U22500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33fbccbefb35ffa70c6b39de89ac82025c2ac7e2e514d56bd5c48f441ca5cbc. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:12:20Z), 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/BR4U22500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df1a15e423e822ff67105ef06e272796ab4bc7ee73cd8164f6f881861632bdd. 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/BR4U22500008.