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 0x01677a7f3008885796ec0d4567aef40c045893472001ffd06e2f7e193b445896. 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/8a11fc2f-4134-429a-851b-eb5b7ba1f94a.json and https://artists.proofprofile.net/proofs/artist/8a11fc2f-4134-429a-851b-eb5b7ba1f94a.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 0x3e5914c6d6148128921d91ab629967c74e9fd133a830d510bc76c39a1e5adf22. 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/QZES52550959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91f4ef623e4d321611a96e5af5064f59a9a0489dffc6e26a4aa4a6dc7f42647. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZES52593932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d9708fcb72cac64d64a14fc82ff6bc19e1c934d436b22a628c894dcba9cab9. 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/QZES62501623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443351159c0e9acb26daa567660ff7528a8b6181402ca1810aa46c3d9072d6da. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZES82528344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67de29622021043fe518195527756d11275b0e1b3a73219ba0e3ddde658d59ab. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZES92507174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fee85f14e7132c96a7f434a99f0450b86b2afaa1bf3f99bbeca86e47ab09cb1. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZES92503753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa2ee4de382f1bdfc6d64cdce06609695cc0712c590757b2dbb1c53a38fe249. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZHN42594103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a652c1651af91d58ea85a372ca352ede31d82596e57423a67d28662784a803. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/QZHN62530427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33462bf7b204bc30eae613d45a3a3bd760a8b4fcd7657e73b05231dd0ef685c2. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/QZHN72540769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf447e48a357653c29304b49069b92ca1fb3c81f7b71c631aec8d6821ea7ca5c7. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZHN62537381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6c28c35fa225e1ae73681a58ceac3045f90365f812b2d646ce6ff0476c67ef. 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/QZHN62539128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacac518b1882e50cf01771779a6775c47615133dff56acd8fe3445ae3468afdb. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZHN92558640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf7a816fca4f9d42ba52dff975934b2b1d1077c16d6615f6f1fb2860986c5b9. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/QZHNC2550189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73e72c5f1a97d0034c77c84d432ab6450b28397181082abeca9ca2b09c02a03. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZHNC2569544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71811819b1d02c65db19163213d00060101960b621c3f8a3a43f186b81c31c39. 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/QZK6P2552646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659a3916874a1cbe5f7ee9f43d24d74499be6ef41fb45a02c2dde2878e544e3a. 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/QZK6P2544088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59775c037533f825361b53b540ed61f735537233bf504f95472d6b33f1a5213a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZK6P2599435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff7b0f86d8604a0796fd2508a81f1ea6c414b7fb37795f4fd964c50abd246ad. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/QZK6F2596737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eaa619d8603f2130562a2d84b5fddb3530bd1986794d5e0b8e50b07d5f047b4. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QZMEP2565736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94f02bc3771e30ed6a3782b333d4a5dd557856e2c98b9eb5406a5e5b1dbfc8a. 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/QZMEP2565737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcede7c69660cd5611be222edaa9dfb04b809605cb25c9f1eb7b3db159c31791e. 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/QZNWW2551276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcee061089223604b90bddeeb6c8100ac6d52e8a6f25f1f3fa5bef22d3c8907. 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/QZPLS2544267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471e47dc09a0caed06bee2ae7f2dc47059c19e3f7293c4dc14437aec6d0f91e2. 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/QZTAU2580012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839886e36fd066a98804bf87ad814532275227ab5b37205620aa91f43dd183ef. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZTAW2528920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a2764a623860c024cf9a72312f24fd8e20fb33bf8914554decbc23d1f6a4ad. 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/QZTB32502645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a6b38cc0601f988d5e7041b55190bf020bc5db6a04f027df060c927b14e0b6. 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/QZTB52547188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ad7e73ca4a4ac4a5e179440916d8d6eaec402710739b626d208c09db5c7978. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZTB72551479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3942599c65e415599cc60685e6661d6692ee91ed923ce28774932e50770c5aba. 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/QZTB52550796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5ffecafe4dff0055f52be6b4a0b316c514eaf4bc4a9cfaf1d5d160754fcc24. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZTBA2525605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf5aae6b77838350fabcc092bfd8954c8f49b642b357d68e8e35c5b9046c08b. 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/QZTBA2537595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1baa5854997eb2cffda29973accb2008f5b7670284089c5757472a984e35ef9d. 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/QZTBA2577707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7217e3c64d10983ce6d5f1421f4de74d2f3848623fe64b20a86035ae676dfc. 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/QZWFN2565136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b46fe2ce1b3e47fc5b60bca5914211696af6d04041727de48756ee6ad0196b4. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZZ762562240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4051a6ecd367347c09323ae3b8ec9914e54ba586ba031f2c04beb88f7e95677. 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/QZZ762559941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4c4de88f00ca3e059e2649110ffaac9dcb24b81ae3e17c90b5a5cccc31df21. 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/QZZ7W2576488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985b701fbd6086ff6531453bb6de741c337fdc5975bce950cbc3de17d1190dd4. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QT3EZ2541633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856235eb518db80164c6d8e345ead7114c42861bb0a0ada99c8f737c6d7ed9f6. 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/QT3F52524188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cf6fdc0ba6f341d7cbba217c656a009974d566b5a5e261b459945898ce5294. 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/QT3F62583166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcab1aaa6af37843101b80f6c5b4fff67965d288d9b8ca057eb84a4038c4618d. 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/QT3F92520154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb00c3fc45d9659321fc810e40128aecb7fd2fb3651bc557523a42ee6c02135c. 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/QT3F92519982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba5e4d2fae034e9a9bbd889f80e522702d8d58f6536b71df42234dfe712dc28. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QT3FE2509692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02950ab98798436850c51b24fb947ba8414035c37cf6568c75afb97ac9f9a70. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QT3FF2582126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bd37e85a794895d8a2afc61321844c84094fa04d74bbf2962558a89e494307. 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/QT6E92559784.