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 0x41a207f6166f6245c5f1855916060fdac686107f737ccc87c500b9b4b12941f2. 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/0b8ec8f7-bc45-4c0d-bc0d-4a5a8acb2fa7.json and https://artists.proofprofile.net/proofs/artist/0b8ec8f7-bc45-4c0d-bc0d-4a5a8acb2fa7.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 0x8b7fe4e28993e82217d70a07a3e777149bbb785977fdd838cbbbe8dc1cde5e99. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZ5AB2071424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d44246c5ced9cd4f0ee469869951e783d846a9696078e5af8a9f24fa9d0175a. 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/QZ5AB2071425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f864ae779209a185bfd2b5a413089c94ae6db7f5fe3bfb7ec2187f3d80a0c49. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US7VG1661640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1994487a8da959a1d22447bab8ab1d776347177da64e639edae2f94fc9effdf6. 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/US7VG1661641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27e3b22793b43dca88e05f893fbbdd4dc6f11fc34fd8dc19fc223b732171c02. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/US7VG1661642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5d88c5e0cdf07b9744d1afc7f71bbad617453cd1e1e20dcb309e6d21b8bf30. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/US7VG1661643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038ec1cbe091b2b18b205f2a9438bdc029790f23e199c1f2f024ef2295ef379b. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/US7VG1661644.
Móntate en el Viaje - Chusma Records Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0ad9ff5378c5f3120c9f02c0fdbca1926fe82dc982c9a2ad0e2df8aff79ff6. 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/US7VG1661648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae883ebd89dd1e3a56d2080946f73b1f63112fff88492b50cd94b80a603ac7fd. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/US7VG1661651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d70dc0143febcc2b6d94cf58b28dd832a9fa6f8f92ca832a5080d5200d06e0. 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/US7VG1724370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a07b0a088676faeb6455be66396162beed28f7c27e17fea62d1d10fa4aaa83c. 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/US7VG1768218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a528dcbaeef3307dcf7d43e45d8d96f400a0e307bc7e1159f7caf5697cdc19. 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/US7VG1768214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f616d8bedf19aa58ac16ead8b4e83079e31776fd6e3f6c075ca5a00e7b32ad. 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/US7VG1768215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42f747ddbb47e8e8e5e528ddd8fb8559d810838105a1581950be3a9bf82542d. 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/QZ5AB1935601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971e620d2e0749c6a18ef02bf795e752e4f1e244e9ff69cf683941b73b62d7d4. 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/US7VG1805507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adf9e8ef448da8f8ec0388062f78694c060a567c5f49af68e543a1b6bc32c6c. 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/QZHZ31922638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef041113d3760e2700b2949e04836a04394d9b1a895d6667b83eab1e549245f. 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/QZHZ31922639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd17f84db032ff3b1e5d0b15dff2265889208c720ae3a81066d3f2fa38ec6ac. 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/QZHZ31922640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a6046004d3cfe641ebc870969518dcf7801bf5c2beac04b31955c85ad1903e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZHZ31922641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf5f1e5ea5b5574e4851c55e38e6aa09f5174c8063fcb221eda5f8ab664a5cc. 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/QZHZ31922642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc43396076418fae2686710cc9cefa94b8ad83f752d311b973e55bbbeaea3f5. 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/QZHZ31922643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065f81f4c5d01d7f6c01077ebd0fd47570b1e2831e3a83b92d4545d1162ccc09. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZHZ31922644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf86781816f8192e25e43f17e3a354f0567d89fd9a524d7bf900431513a2a09c. 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/QZHZ31922645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eec43c21b99834af312a96b56f0cb4ac8981b8698f7abe33aeb9ed50c4c11ef. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/QZHZ31922646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ffbe17e2278b09a79384beba0ee25b12e4fe47c7f5c6023054a15db9402aa1. 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/QZHZ62013205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072c26ce4cb3e775ef9cd1c402f8735e5c5e24b62d0993f157aba9199bdfbd62. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZMZ92155811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283ebf07087c5ec99e015b6902d28d9acf5939980643083b300a2e558dd6b267. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/QZTPX2129192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781380623bd9e28bbda5abb2c422fa6c5bce6ff76e5cc15c1c85212a21b8bf25. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/BK4DA2413325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010514732c0611187d6c608289af828ad92c7dbfbec183c0c44ca43c2407eb88. 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/BK4DA2411557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32c5b722c6c623b82c11ca30fd3ce1d4034c745555c36e8bea514c26047199d. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/BK4DA2413326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8485524d9e4ef25461bc0a0db4ebe5775497c2a43f231a7c37ff95cd4465f5d7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BK4DA2413327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251f043fca25c1dea9e7097b66fd9d804dedc39b5fcc60658cec71786255fb45. 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/BK4DA2413328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab181fbcae9899d0bc3c5283acebcb1b28049802e35d91aeef59d95bc56117f5. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BK4DA2413329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61070a82b0a5690f82555c6267fbfa8e2b1a386430ab82cd4d38eb740378a92c. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/BK4DA2413330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7edad32760a16ff85e75296bfed55f8f19da937910f8ee29fd2f4d2061de083. 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/BK4DA2413331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9071781357bed8962e2f3177a91d5b2403076ad67a7aedf0c936c40606685fe. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/BK4DA2413332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea92b352aef903bd304c9305690df0032fd87f966fe9767cd615006ffd2864d0. 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/BK4DA2454543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd288394a9afa21f6e99e08d092a23e9f3f0b777ec2820be864c2995cd3c87e8. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/BK4DA2454549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46962f0f537cfaf02a036d61ffac5cc306a87dc25eb070c2b6695a9e9ec4c92. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/BK4DA2454550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49321cb0e2869106392061436d98c46c6e7eb5abf01b5a9b0007273beb3e722b. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/BK4DA2545582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdeafc6a371d6e6d15f164d1e75814646d79e69718b376eaadf4c501df4d9515. 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/QZ7362400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009d6d7e460c8ec86e49c952bbf09a72fec9d3389fdd2e0188275a973734b0a0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEAF71212506.