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 0x478abd8b54a24ed007411b6b7f2df915020e9154bf28c371510628c3a7d94ed0. 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/ec8f9583-fe5a-45ee-a49e-2a5c0369e6c6.json and https://artists.proofprofile.net/proofs/artist/ec8f9583-fe5a-45ee-a49e-2a5c0369e6c6.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 0x6bccafe0a1b709cff61e2fb07eb4bf9b5c78718564445900ffc845e2c2d5ccc5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPS801390142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbff77c58666fd38a8ccbbe280ed65e3a1b3ce6fa6783b4b9a81ad2e41a4bba. 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/JPS801390143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee425d51617d25a1e0a6c717eef521187b4bb9d73f5752ef1f2108ef2275b8d7. 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/JPS801390144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f041520c59ce99c5c983d32da2acacfb4330bd5c61cb85cc52e401ccb248a8. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/JPS801390146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916e10b46aa07996cf82b1f91f1e22f8ac34f6a98d122a9ae209e26eff63db3a. 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/JPS801390150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc147a0daf423c0627bc0e4d5cf98ad35da1ccefec3ea3f7cfb50b704592981a1. 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/JPS801390151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27e5f1c920786dcdb7cf73ddcb617408d844ee944e38410086ac6bf0aa0049c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPS809907451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf7f8da14d6188f33329f7fbb71f6bf607b9e5b959162f96e8775406a554a11. 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/JPS809907452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4cb2488dbb0d1743be5d17591e976d9344935b9ab9ca94fbf4e26cfd80e2c4. 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/JPS809907453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750d88233976cbae83d15d6ee33c18f5a1ad48a6970466075d6b839b4cb5dcd0. 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/JPS809907455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12e9cd058d5170e734babf3cae3c8ee94685d393b6daf190b08d71520523ccb. 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/JPS809907456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777f3b101b8a3835f27bbaf23e9e41e090426bffcdd998c346838488bf4cf4ce. 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/JPS809907457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0430c39c6c05d2581397225e6f5abfc1094ef1a7ead79d4e6f6cd7432610a8. 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/JPS809907459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2273637a874f9053496f3050dee8cf76a487c84eaec2bc216c116d91b7f0f4c9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPS809907460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabfa59a814d1602f65424f33b24047373943cd046cb77c8373bd34a506d89568. 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/JPS809907461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f93eeb36a00d3083429653cb09263ccd7ad7d6e5d7f90b01a73089e46805696. 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/JPS809907462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bcc0eeb9ed7896a37555b3e659a8a44e6ff667ca03c166c9cf94d92d156e509. 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/JPS809907463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6cd4097b1bec2c7034edddc53830636edfa841c0973bafa0386d497926d431. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:31:38Z), 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/JPJ901807580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4653e9f64874071a53352eca7c57e4c94e8cdef97731c459edbfe3d04364a4f. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/JPJ901813070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde073bfef74e499e8fbaebbd38209104167bd849be004757fa0701d44e9095cb. 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/JPJ901813130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c0f67b4db91f3938bc4670a58c458a215c0586edae75745fc4c1ef05cd2950. 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/JPJ901813140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc37a2bd50529394d1c6ecae662db0ea5d5052d07776eb0077bc33fa9ba40337. 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/JPJ902007060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1387a717edfe1abca0259a94af06dc70fec5de176c4de95a653668d35a6252a. 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/JPJ902013810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18089931c746eb7d6b2e9ffbef71b968592467098f91fa3eaa546eb29bb8918. 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/JPJ902013820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3ebe42e650f20fd37e83fd59df351c1a234457313039c2ec771ca254699b48. 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/JPJ902011200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275f94e46c48eab84ea01ff345f64a393761ca9930ceaaa7f7c4631b326e98d6. 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/JPJ902013840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f5bfe1e14eb59fa8b91589cdcf291dddf7da084c22e569edca486d1c16d272. 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/JPJ902013850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aae147d3b43db3eab8e35f0c6d14f968eb375a8aa2ca3c4cd66b9eb026d916e. 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/JPJ902013860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26ba1738732631b21987e4028610c3a28810220558e976dfb751033a1dec13a. 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/JPJ902013870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9535e9bcfa0de419fb16f348f4eff7d4eca1e3f375e9203fc0edc422dad58204. 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/JPJ902013880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc37a2bd50529394d1c6ecae662db0ea5d5052d07776eb0077bc33fa9ba40337. 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/JPJ902007060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf296e4f726d935bec9b40a9dce5203767e71113a5d38877a67e1da8e53ecb2ee. 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/JPJ902013900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626c7ce2d4a993a061458b39c302485936d32f44dd452c0c5237f61616a975e7. 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/JPJ902013910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdfe9b0f8c3c02d6bf2d779297f87ba14be2b5698fb8d1128bd694b5cda6fc85. 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/JPJ902013920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5520062e81308195f00804c1693447d1408a6ecf0c58d751c996c1ecf867b7. 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/JPJ902013930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe481093dda0c867ddd2db57ddc46c49431954b22450b337e29e66ec5813d57ea. 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/JPPO02402927.
Go Away (feat. Kid Fresino & Campanella)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135b40c31fd85872bd5533dc5b4f5bb68740ac1b8252a65b0a282d05ccbab10e. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/JPJ902005070.
鶏と蛇と豚 ~Gate of Living~ - KID FRESINO REMIX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830c45262e500d88ec15e4b2be1ef303f258d480b42df67b84fb06d47a42fa79. 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/JPPO02204068.
Above the Clouds (feat. 長岡亮介, C.O.S.A. × KID FRESINO & asuka ando)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860e7969aa3ebb547b3cc186ebf9949352a558b4557de75b894dcf721de7bc6f. 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/JPJ901808590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9872bc5c6989c2029110a334273c9e450bddb7e4baf04cb5a8d9b2a0ac66c207. 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/TCJPO2159005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1b9df0f86c917b6fb967a033b76210d6434dffcda57fe08b13b38aa7c7e72c. 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/JPV501600094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613ccc8111c4afe8d31ff72b1530ae27019b7d75d211eaa6f74c0336c77114cd. 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/JPU901902565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613ccc8111c4afe8d31ff72b1530ae27019b7d75d211eaa6f74c0336c77114cd. 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/JPU901902565.