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 0x58599e71007625e65ba616f51eebe9ad7826e99cccc2d0518838cb43741bd878. 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/d3a7fa4f-748c-4e0f-948f-e7856f7c286a.json and https://artists.proofprofile.net/proofs/artist/d3a7fa4f-748c-4e0f-948f-e7856f7c286a.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 0xfa6d5e4dfebb29dd762dfc74602c6c5232ddd208a95831c665816412fdb32eae. 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/QZDA82549511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd744adfba3612590abb535d71888afd3fefb053fb7aa27c0ac2f64cc685065a6. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:06:53Z), 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/QZDA82549512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c68d8d3b23d2539f79aeabfa7148efe5b711d99dab1b09ab1a286092904895. 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/QZDA82549513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa7ce159ce0b009c62524ecd1b3a5db5b6ffe39ec23e68216bd20c64cff125a. 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/QZDA82549514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f26abb102e2dce81d685d67701ca96b986ef1319dc4eb47b84bc3f4d59960b. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/QZDA82549515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf915d90ae215e47e006d48762ed59f36bc3566cc169f2c25ce809fac942c8596. 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/QZDA82549516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6416992fb28f6965f51a91f1639a6d09c774e46e0b2f396c1e9f32348bfc35. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZDA82549517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb39a5954ce7360bf470b45bc4dac4d990d4ad58146a73483c484cfd894bc32. 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/QZDA82549518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a44679d1252b8e7015a6480c1bf58172091c88b84b45c4104cfce744e51a1fb. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:34:56Z), 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/QZDA82549519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace338944305d616afe556cad2edf627f630ae4f9b12f3e0873c37008df051cd. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZDA82549520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d4cedc97457c5903beb834a33ccee2e47f69033c3b5836f10d1c0d042f4f13. 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/QZDA82549521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c0424278b29d67be74e6054205a107174602d02c55aa58dc71abc8645c6c9a. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:50:49Z), 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/QZDA82549522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9864f4aac945ca01666934318b3881da8aac25f349c131b9f4329b61a898d1b5. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZDA82549523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47740782a7151ff5349986722b34fc12ef9b79d77e03625be0ee1f76743e03e. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZDA82549524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ecaa73fc7f8f4d316ad77d6f693153118a8b9e76e7b9ebda0644ad358d5c04. 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/QZDA82549525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b67ad3c256213cae2e3123e778029e916cae5c5c3fb6e2eee14463cf39a4634. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZDA82549526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3ee13a705e2d26ded81a57d41edf48090e4959a90f410fb151bd18a2bbf254. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZDA82549527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5200558cd1d4e88b93b5ce35b84aafedbbe0bde0c76daa75f9a17474eda0b997. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/QZWFG2546184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0348e2d7adebdc92aad9e8c5fcd37d57e7600633d381afcf612076cb543edf2f. 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/QZWFG2546185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0965c06d3ccdba0e11f3e044501b0f7c34f6327ea9246dfcdefc82e875d16776. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZWFG2546186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72cb7b22b683b7c725dbb012d7b5d6a89da632da18b369be25317a732ec2dc0d. 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/QZWFG2546187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959eb2c17dda49a6e91a426905cc10266ad5d14a807cbad16331a1876d7191b0. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZWFG2546190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92bacbc4df463c449de4a2d83c41caf307f5c3b9f3e40a5929e10a8530e35e4. 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/QZWFG2546191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14daca5e52615c751425d0d1ced9f800a7d625aa54c0795567e297492fe54438. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZWFG2546192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4677ece25a38cc7aa37263aec04d5ce152ae677b342308e620b949af5c6ed5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZWFG2546193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce9a1549aaa97d6999b498b7e83672766e3f502c8fddfc71f74f0e77d853591. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZWFG2546195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1237bcc77607e770b4a5e93a9c8c267832d9dfca51133ef26da187ef0f347570. 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/QZWFG2546197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2ea30399fd09906f3bbbd3f2b0e37e271f5685fcc3023fe28cd1dd941513b3. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T00:33:37Z), 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/TCAJF2531335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2371ce623d9d604c457ce301da93c0506a3a02569b1b4e528c415ca8fee229cb. 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/TCAJF2531341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07233e278d2f98948c5bb7cf4c041a01d32389afc16f686d8f46b6d04a05c7b0. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/TCAJG2531348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3c8fa91ec3c2723c61b1bc99cb45bcc11c35be382e0e7fd556fa9e7e5fe567. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCAJF2531353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ceff6d90a0fdb506af249705431310688e35d3e9a4d5ab1400bfdecc4d5a72f. 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/TCAJG2531357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2edc921bdca124ed53ebdd73c401ce0e351ea5752bd2cb3018f9ad0fab43466. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:19:35Z), 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/TCAJF2531364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b2553deb649e458ad9ad74cf346faedbd4048228e1238b4497efa5e0761c8a. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/TCAJF2531366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb16ff530e9a3c100d3defbf65e87e9cf88917991f20b00051b40d65f0725aac. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/TCAJF2531375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae8e1f15adf4bf07b87c5cbf16f908e1459329422259fd7bfd8aa183c70ba10. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/TCAJF2531380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18ec387a4cce9adc2dc4fda5c573bbd67d6f715e7d0516cc1b118765dc65462. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/TCAJF2531385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b0a3fb24a5ccfc72fc2cdf0f57fd8e3ca83375feae787094177cf3d0155b9a. 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/TCAJF2531390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f8e43ed134ff48c93d7febab4e0b556d606a3b85771a89bcc798df6c0069e4. 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/TCAJF2531398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a0590fc6b5cbee600a88380862a8e96b366b580ed06a1f5f0e6af0bfa6ab0a. 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/TCAJF2531402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c87e0f5c71140850844fc606165db430944de2c19c0b224b674a3dd0675c78. 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/TCAJG2531405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9419bac101466865c0377b4eec7336623d8a463bee71561ca822da1e28b22d4. 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/TCAJF2531410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32195d73548fb8c3509a4cc19c8b7c21df883d6cef59bc4e5d83897ee340a1f. 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/TCAJF2531416.