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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0602f98445ff37f10e070201bb32087023801f381aad8f9d7a1424a4c5da566a. 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/a6e2f022-00e2-494e-91a5-90adacb5d8cc.json and https://artists.proofprofile.net/proofs/artist/a6e2f022-00e2-494e-91a5-90adacb5d8cc.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67629f3f367dc3009d5a55a5eb1895d01d12acab15deeb0a97e39022a8cac161. 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/RUB421501279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d9a45cce049ab64c3859db49feccb043d80a13b38a86d0f9bbc0f2d7e113c8. 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/RUB421500923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798a90bfe773d71332074cfadd498b6d2ec1b3b1374f69971967630564862f53. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/RUB421600554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921d0a463c4557d356eeda0f53d2a2025ae261d3478846872ab46ac53b916feb. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/RUB421700050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6e96aedc6d4fa302387c765f2da7be5ef005802097af2f415683fdcb0cb8d6. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/RUB421701368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b58f191db3e640c8310335f2f175e67e08f7a50a354a4ab2aed9ebf35c3fb12. 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/RUA591800941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed97073c2b09ccfa99cdafcd409106a2a5891b668fa6829c1b2720c6c898bb73. 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/RUA591900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81de4b91fb7de1f2744e585ddef4ae9e38cadb7959ed8ee37b670066f232483. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/RUB421901661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc77ac8ec741783fe3f6bcf03257a63fdee1567a30e1fb35054bdf3dd51e5749. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/RUB421901663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce39f78fdddaafaf16033a2fe046b798d9556e6c60c406068acc58f748dee27. 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/RUB421901671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410b0aa9123edfb7e9b0c229e1bb626e18a42bd15ae9524a77d70a2f59c87c5a. 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/RUB421901683.
Потерянный рай (Tribute Вячеслава Тюрина)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67336a80f1c9c937421839e774e430a2fd1a7bc4ee3313fd438645a7c79de6cb. 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/RUB422100440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8180258249dfc563ae5a08c58addf2903b05f7e454111ea62e878cb75f5cf0. 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/RUB422101242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817ad9461de031647bda365c248aff5e42173bc9c288d2fb4e356e9400475402. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/RUB422102832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05700464b0954857d6bece834ad598a3ccb43a2ed11442351d3e88325a401fe. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/RUB422103564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b5537ecc56938688fa01d22d266eed0443a97f19fe3f0b1a7974265686b2f2. 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/RUB422201142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c7e3361bad87e49f5e97980aa035804a6e33d4169e5a91ac64b37c13b33878. 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/RUB422201145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb70295680ed8d8df1d0cb521c923581963e6aea425fb26a9b8673449b093f0. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/RUB422202317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae77521cbcba2a843d80273bd299482fab2fc0c98238bd77d0cd92c50ee5794. 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/RUB422300736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b3651a14fb36bd97f2bb341ddf9097204e3aabbdeadba495db9a3a00911b1d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/RUB422300533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32cb964cce4f05b155e7540c07fca669eb1a9f8987bf9af53789c911412e517a. 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/RUA842319219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081dd344aae4324ef736ca38d0c800648130e65cd539f4418292b6d9c34e0332. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/RUB422302383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44dac2a3af9ed319218e80dd028c5a09aa24948797f0435f76a624969d261c6. 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/RUB422400392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae68d9663790803ecc3a96f93620fd0e1f0be6c21f7a9e7c76c2f4f93a324a4b. 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/RUB422401179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c55df2f56ebe4e743eef80140bf322d070b81ce08b07f7401026e54eadcba80. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/RUB422104371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4c42c3b90869e256388cfb94e723d3c3bbdff11a654fe933e74dd3c2d2e3a5. 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/RUB421800275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185ba405acedc82cdf39d478c8ea72a56da82a2aaf876a445e462d6e5351020f. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/RUB421400266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8632ae7152575bf951af6acf89cf97970c38bce19e78eabae73ac71970af88f. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/RUB422402508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb75530b32d0d1b0d2ae45848a58c6429e7db55f624470707d3725b698a5d07. 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/RUB422402797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdaf4ead6c6a7f1e0b7e883cfc8391feba843d704a9b32b317e3ea2c95b73492. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/RUB422402976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031df72ac764d97ed14a6838f85e7b93df67b4d4e3cad7296f861e8467201723. 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/RUB422403455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3574f13383b3f66da736ed07603f58910590a938a8832245d20d4504a0f6a0. 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/RUB422404000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06ec19c1556177c25ffcd974423e0dc6caea8922c6e413dd5500dbd57ca0c2e. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/RUB422404462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3e3ac624fa35bd4c7722a7c59449d46e990ca40fd67e91080b06bff13116fa. 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/RUB422404463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16fa3aea4c770c37578f00bf04065a6481cdfea9dcc36ff98808f382e0c7b3bd. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/RUB422404464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f99c661143ff01878678bd455da57bbb7eec8acc5acde24c57ed5e672d41313. 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/RUB422502339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce089a2a35adad6caf3066c8ca35312b274c177603334f59ecd9f9e07201e4ab. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/RUB422502340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144780d193ab6caeb662f4a9d43ad48cb9a3a25e04608b6294984e6c9869622d. 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/RUB422502341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9022fb2968802311eb0211f1dff0bf45e628d3c46fadd8e906f87f2c90b63325. 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/RUB422503234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab89a1f557f774ae58d885ef2b663271e6958db00d7d24c0a2cf692d10a024f0. 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/RUB422503236.
Помилуй, Господи, нас, грешных, и спаси (Любэ 35. Всё опять начинается. Трибьют)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c627de5b7499ceb4d0b4f898a6ffd7faae538e568cd6a80cd1c3153b4a2a30. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/FRX452164093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a1e83107b2521ad49e31dc90ca7676763dc788b2afbd35e4d0194fbace0170. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DGA052271432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb06ab8320af35b3822cda1138fda49a6a3d12d9c7fad3383c1d94c82e10642. 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/QZL5N2101558.