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 0x98b9c79c61f75cff366b20380aa61fd0eb6651d36dd0d4f7e08426ed56a4eee1. 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/4388d24f-ae41-4637-9ee4-02a33bf9208e.json and https://artists.proofprofile.net/proofs/artist/4388d24f-ae41-4637-9ee4-02a33bf9208e.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 0x24d5ca0c8c307aae9c01440426891b510180006654b2a45cfc1d9c59a3eff3bc. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/TCACA1431356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc6d0b56ed3a0995fe611ad3734bd3abc349e180bfc903c73809ddb952d6f27. 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/TCACC1455505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6c27b3dbf664588d746666ea0ee69048b5d52a7fe02fed1fdbd1f7a0a09428. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:09:44Z), 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/TCACG1543073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e7899911b86ba0a9d78f5c528deb27ac6120a224a8c323467cb3f6f5c1ec1f. 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/TCACG1543074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8097e2779ee87942b7c1b0f5cd3a5f3c51e8d1992fc78bfc22c294c86f47ef0. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:51:17Z), 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/GBKPL1664537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77efa68505e3295d80b36e25cf9f59198cd3325172f8a2d21ec9866e335f8e5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBKPL1665285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a2b53519cf18051ec5382bb19fe08994d4259a1b1f1470adaf9d841b8d9a16. 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/GBKPL1665286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb195cc7536e9e268d64bd408f1c891888b907b94fc4c45e04ba859025e73c61. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/GBWWP1702729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7aab26099588afa66f1c9c1d22d64f0587993da67458cc6df26d5233f18f43. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GBWWP1702732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23ce707208db7853c0286697fb43ac904e1ffc4ed3ec1c7de620d36bd2a8cc0. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/GBWWP1702733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a799c561b5e9dff824a34902e6b9d861628ca9e378fb8bc4a04ea57725e9873. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/GBWWP1702736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a33889b0a09f4d99e7a5e962250aa507edb4b2b3adde2f110b14530598b1a1a. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/GBWWP1803470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a41cfbac88e57682fdfd0c569e54edd8d1cd9c44e52643ec02c0a3d7532d3a5. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:29:29Z), 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/GBWWP1703152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d57f6e53ca334904d1385ff7b8ee0df1932b948da7cbb46d8b801054804699. 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/GBKPL1963066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf438eb36e1ffb3b66ff9cd455555678be9d294a7143b6eba1ab6bccbd09d047. 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/GBKPL1963068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa9d89776b71cf866f9b16ff566883c43dae3a4e234c364195a3fbd5e71ad8d. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/GBKPL2086712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2497adbb102f58c9af6d9cd3abb43d8be14e1d0f7f5ff4b36f4ffffe611b81c9. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBKPL2021818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0aab8e36fcbce88f508dbdc049a4eb3b9c3bd09cb4a9ec8b029e5033e240df5. 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/GBKPL2023657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330d55331b61325f13def6af47b7e0ba4435da08a2ec27d9f44c2eceeeb6eeab. 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/GBKPL2031006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8e625ad9b3155fe91b45c67c75713599f7055fcb5f0f67f97a2c47dfa1daa4. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T19:03:38Z), 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/TCAFM2149362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb53f10182fbed7539e339e3654e245cc7cd24eb6345833f58de1585309b063. 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/TCAFO2126913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681b83b0e0d0036d7cdc093c94f26090022a7d8e3db313211f8ceba0198f92d1. 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/QZLBC2200737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b898898fe60cd1f52df1cf7e019c7d038289af574c88e3835c9e1cac063e29. 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/QZLBC2200886.
i don't want you to come home for christmas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd8dedac74850c09b32681f557f0beb552231cbcfa68e0361b758c7a157cbac. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:54:19Z), 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/QZLBC2202411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9febb7a7b7474ba50a986cee5e39089f7953026df36876e6c883ebdb558497b. 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/QZLBC2202408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6036c62292b4ec9acebd93f43b1d2a0ffd660bdd7da5afabe2da2d4a27ec6b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZLBC2202414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc546655f674daf01b07318984a18dca777697a3fcbf599878d6b81e2234f3a. 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/QZLBC2325376.
i thought i was waiting (bronze vases remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81edcad1594b910e1a98de3687d3847c6d5a4ba6129d5fc975e9b08a3bd1df6. 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/QZLBC2401002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9044b43c5626ebf0f31b1e4a02d5d9a7189a90d6ac4e300820b38cfc20ab1ee5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBKPL1776902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801a1281a0c164e1c2bc3975e2dfad1c430bfb713dba646730e9b674dd442f2d. 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/DEUM72201039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8475b8a72752fa8d73143b7668e83d1cee531fb1901196eed51bdc3674276d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEUM72119676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8475b8a72752fa8d73143b7668e83d1cee531fb1901196eed51bdc3674276d. 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/DEUM72119676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc313ef5a380dc93fb132574f1c6093d96d80856d213dadd548e5648fc342cf49. 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/GBKPL1790857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17011b304b6817ee42c43278909a439c5aafebfcb2c454056962e4382059d98f. 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/USAT21810858.
You Don't Know About Me - The ACLU Remix
You Don't Know About Me (The ACLU Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b3bb4345928f76a20ae09b799dc607b9920018e188045c2910859b5427b895. 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/GBKPL1811151.
They Might've Even Loved Me (Re:Imagination)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac662968f99395b5b16ac56cdfbcf39b3dafef509ec8d43fc2338c58e8b8c8b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAEC1989882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4242aea17ac1ac80c60f2521399b65e3a02caeeb3f5db03a0be443b731c5e2. 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/QZ47A2401131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf78faf8c82a71f2ccf899ab3bf1a90aa56694991bca13bd233506bf957d21cb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USUM71702611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07cba5ba308c3b682517f761a6001b3cf3e46cfb6999070cf7207cca2f41d73e. 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/QZLBC2318468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d4b0c38e829d4cb98423ddaf552df50636414d807c6d54a9be02bb1f9affdd. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/DEUM72201040.
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 0x89e672d4e1a87e76a383eb5a79b502cb06e36e2d752ff2339950a74c849c5765. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/DEUM72201041.