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 0xba3373435ead5d395ba471894a0fa3c486f4f36300537a286388d4b99c7ed449. 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/1dac3cfd-5002-4673-83d1-3c68e09aa41b.json and https://artists.proofprofile.net/proofs/artist/1dac3cfd-5002-4673-83d1-3c68e09aa41b.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 0xf3e2be98fc96945b12d37689bbb0191c92965b5b706587e73c599ea3a4693329. 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/ITSU81300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bd32580ba007b74aa16d89d24a056aca2a3c511e4414d7e1cafe72ea8464f4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ITSU81300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87744a73ab8f25a56313e916b47d85d82ef9d9f3542d83f0cf60e5ef57cbdb06. 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/ITSU81300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9203a80de1569bebdfc7b23d71f59f33be0e6a3e2bda95d7d9e4a416a65f83. 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/ITSU81300008.
Numero 9 (Gomorra la Serie soundtrack, Gomorrah)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4fbb918ab7514948fca92b1a673a0745d4a05dee941cec11a657158bd3476da. 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/ITSU81400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5d03fc30a6680febd50ee4b0de5c3faeec8cd644b2ecedb16ff72ecc8c2f6e. 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/ITSU81400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42eb53ee95abac89e11fed6580bb85a4bd76bb4932b26661c5ad02ed6dc23eeb. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/ITSU81400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97dc3c3e3aafed6ba0ca3acc31e6051f56ed38912a6898dab723e0abec2ad84. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ITSU81400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817a8b5a54360447ba19f4ec2f1e30fedeaff23826e5a4fa244774a8d2e68d0b. 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/ITSU81400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b25a2d94592ed85398e941120e4ee411e04bb71766c1dbcc77a6fac8443bc9. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ITSU81500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e69fe28eb8fd0162ca95114d5aa7e5d47a03807c6ee908adba40e733535f98c. 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/ITSU81600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0fba54d54e3ae19cb028a080050e46a09f2fb110eb5d65b8745895bea83e3c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ITSU81600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd417a02de4a474d20db5b3767f9711d06925773e691a0ecf409fd6ad40c6d130. 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/ITSU81900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcda38aa3013a12461d694c204420f968096c50bdbda4f8b40e440b6cfbefa07. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/ITSU81700101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c77bea5df6108a61cc40ec1e924f4b9ee9f8faf3d9e6671ff955cca0e1b407. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/ITSU81700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffab3138da0bdee6f8a6485dca8c764298c67b4d040df1c4509578336a5402d. 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/ITB001900412.
Nevada (feat. Clementino) [prod. Gianluca Brugnano]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f99339f803fa42d8cd1788e96ce82187f14a6a6d1ef7cbe9770bb39065877d1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITB002000091.
Mi conosci (feat. Giaime) - prod. Andry The Hitmaker & MadReal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc212f90e55bd1a70cacd79d593938bd8dd305194daa9c14651fc9dd02174e7c5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITB002000092.
Antiproiettile (feat. Jake La Furia) - prod. G Ferrari
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddf65a01be490b098870c198ee529d67e3866d905af51ab1cec55a87d982121. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITB002000093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b470f84c5857fc3d539b628f718d29963afb5ce3b9bbb823f90e80b15e0182. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITB002000094.
Nevada (feat. Clementino) - prod. Gianluca Brugnano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d57335ba59b874e1eef4e4f80719d7e2132155265e89e2e746d91c975ec8cc4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITB002000075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60dfbc6d3dd4196774268caa5aeb5e1ccb862bfd0851574ba5ff41ab02714dc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITB002000095.
Diva (feat. Enzo Avitabile & Nina Zilli) - prod. cashfloe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf42932f46310fec5be4863a578b244940470b1fe26d1ed8f0f2cc1705c6064. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITB002000096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca8900c8d718a3a4add7924698c9188d2ef52c051773e4ef3867a93458c827c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITB001900610.
Lexotan (feat. Nico Tesla) - prod. cashfloe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4956809f5b0def21573e781b8ad97fc87fcf916a94f8e01db68f6025de60fa. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ITB002000097.
Petrolio (feat. Emiliana Cantone) - prod. Stabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ff14182b0f6b1807706d2e2fe4da43b0e87be9ee68bd22964ad9e2130a97e5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ITB002000098.
Ti faccio ricca (feat. Gianni Bismark) - prod. Dj Klonh
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b3410ce9eaebba026309ee1861bf30fc6617c860fd3d63f8ad1ca1621ca63d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITB002000099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c5a77f4bd88ea5d3e989a81d14fac33c582b68994db9ffc975495f1c15304e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITB002000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8348f2744ba145ad7420c214779f242e9b14d3e8939dead3590afa8b09c137f. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/TCAFH2074043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46885c0a00a2b577c0899a379879254681ca6b11e86b7cea1306e925d6c9623. 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/FR59R2228590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a2258a1668e99dbd25aea7bb6ff92a4a1afbba4b346b5db540bf547bdbefe2. 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/ITSU82200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6a6854bc1d14b6ff0be8ced940ef31723e593b1c7564a48b149a189c1fddd1. 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/FRX282355297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x885f78ce186cef89f76d3f19e9022d80df3e781dec660bd0d44ac761ac779883. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCACT1669553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c662cba58fb5ef77ac9e9962f82a9c9d6012a254ff5481da10344db90aec329. 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/ITDO81900621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064b9f9ee41c334b8072c18769083c8b7ab0d26501afdfa3db9b21cb18a4855b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAGN2290895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6454048155d913787e04c9afbe6c1babff7332696a38cdb2a621e1ab3b9ea10a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/IT0CF1500154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff31b2b598b405a0ef17a8b2d73eaf7b99562f08e1647ebe31a49590cbe18122. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITUM71100415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce88abf9b41aa127fb69fdcb82ae75b8bc141bf6ddb9fa574cdb679f195eea23. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/GBHGA1102677.
Dogo Gang Presenta: Benvenuti Nella Giungla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392dbfef2e23bd526d1b623c5a4c344a3fd286072b837c6a9465828de3313e21. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITL560700042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27a7e268c772079f6c500ac43da36b19881915c34e4577b6f4800f1adaa4939. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITUM72001361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75410f77667648d73d1087fd235658ea74dc867a32f23e57313a5ec7f8227f1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITUM71801373.