Mouse on the Keys (stylized as mouse on the keys) is a Japanese post-rock band from Tokyo. History Mouse on the Keys began in 2007 with the release of an EP titled Sezession. In 2009, they released
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 0x86ba4700120a8fab98989b31bbc28edad5c7cd32fcead665e0df1aeb2c0c6491. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32d80a27-2eb4-47da-91be-6f0de5584161.json and https://artists.proofprofile.net/proofs/artist/32d80a27-2eb4-47da-91be-6f0de5584161.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 0x719016d8c53e24e0b716432f0bb8296ad6f53959bc6c8335a634f30c1cfaea53. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/JPJ900710140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa4b13f1f088a48f9fff0b2a302c0cf32011eb348c32cb7308279de260921c3. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/JPJ900710160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719016d8c53e24e0b716432f0bb8296ad6f53959bc6c8335a634f30c1cfaea53. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:46:46Z), 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/JPJ900710140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6641d65ce01066788e4c8c54eedb935de9680be2175a5ba426f8918f776e4876. 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/JPJ900907760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70643354ad6c3d050660f86c9699536922fc73cb693fcfffa38e4dc7902f911e. 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/JPJ900907800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a010b898a454a74cefb8eba792c5e19da3356e5127f694e877254cd7ae29c7. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:33:47Z), 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/JPJ900907810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b063478ca83fa96bf3c38b1966a46c321a9612d61d31a965e25c78f0214fe9. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/JPJ900907730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6641d65ce01066788e4c8c54eedb935de9680be2175a5ba426f8918f776e4876. 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/JPJ900907760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa34169926cb48bed9fe599c1a5affc7b96ca74194a2e616891779642468b867. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:29:41Z), 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/JPJ900907770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83872125e6939e241101547ccb7895739ca1edd718cb6860cdc530ce23ce94a7. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:46:49Z), 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/JPJ900907780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe309b9427bbc0d793c66a4b4c7e956a5f925de5da1f84193dd7363d470ee2c23. 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/JPJ900907790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70643354ad6c3d050660f86c9699536922fc73cb693fcfffa38e4dc7902f911e. 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/JPJ900907800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4add94186bde7e492c39fe7a48fcc550bcb2350fe9640b0863307dda69392c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPZ921207238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26c8513d18be9840659b48ca9669a777e541b6b78a7e24af0aa895cb48e1177. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPZ921207239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f78340d049669b5759cb9b9ea8ef2ffa8fc1b27252e35077713b4d4853a5635. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:10:28Z), 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/JPZ921207236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f32f7371c09510fd4129fa76d9cc814f8b1b37067d34f799e7d81fb40046dd. 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/JPZ921207237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e53b53eb69e46a60cf548f8881183f49b868af2cb9796b1bce451c6720efe9b. 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/DEU671502234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dca5b78d1ffeed0cca436ee819562f55e7fba5fb6cdd0a82803f4ce86a3d987. 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/DEU671502236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473fd1b18038fd5ae241fd2e63593ae0a6a7a7ff3c99ceb9253fcb518136235f. 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/DEU671502240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82023adc58f0230ce1b1583ee18a22fe4da6033e4d5e2d125a7b460a112ef245. 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/USEZ61716502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ac5aed9b708b707b4b05f5f0a451d448a7e7a0973190c0843d578b64c8b9b8. 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/JPJ901803570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635560dc5ec8e874180d5bc03e5a753432abf114f46dcfe56865a0844dc29bca. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/JPJ901803580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38a57672297fcb446c6e59ef8c4a4e1d256bdee9f09835452618cb70cef5986. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:21:20Z), 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/JPJ901803590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997fb3ff20e54568589eca54eae6cefb459b0ad669e489fe5308cb987267da56. 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/JPJ901803600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38a57672297fcb446c6e59ef8c4a4e1d256bdee9f09835452618cb70cef5986. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/JPJ901803590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd222d6dd481a4a2077d6cb713ee48686bfa311a30a05c0e3bf1c53af2a153533. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:43:00Z), 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/JPJ901803620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47e0ade1ea201fe789006e9e7e5f012a28404c2a7dc8ff2d1853ba5c260175b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:38:14Z), 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/JPJ901803650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad809c00d7f843a448af664b28617615351afa36868353fd6c08e863751cb6f. 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/JP92N2357995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169d3da55047f0ec1189fa5ac32c42ed5daac5a28b6b64a33b7c85e0520dfd62. 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/JP92N2449110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c59542564a4eeaa10fa586dbc822dc98ab647859495ed364e0fb8435bed724. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/JP92N2449111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a1d8c7e94a892f794dab9dfdecbaefb370c174ba0d5068c2d1b1e79d9f064c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JP92N2449112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf843b06d0b017dbbaaa93a6a9ed0547e492b37b66fe282571930bf70a6ece8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/JP92N2449113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa77517d051ccae8796de57fae5b65600c2e32ecd7d3154fcb3e11c11bb689e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JP92N2449114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de66f851e2fd22cc99bbd4d0c99bb78f7e62c39fce9e21971deb679e6ff3b22. 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/JP92N2449115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5cbc4c7b4755d13d762aac6e1de184b25ccfc1a3e162acd071c47443c6d54e. 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/JP92N2449116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcdb36afa1783468db92c8a538311bc21972c6f008b4b6ebeb234a7ffb34d584. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:08:51Z), 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/JP92N2449117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4b3abb35fbcbc17ca305a1488491a60945640b8f1ae665ef64f47cdce28793. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JP92N2449118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc2fb912521b7e908d4c6169a60968b15943cc06a9ff4214845a754d18461b8. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/JP92N2449120.
TBS系 日曜劇場「ラストマン-全盲の捜査官-」オリジナル・サウンドトラック Vol.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c258c3b1dc2dcd713d920a59f1ce320da79fdab11c4365b9a9399f33aaf9520. 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/JPL802335011.
日曜劇場「ラストマン-全盲の捜査官-」オリジナル・サウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f06eb7aca08cf977bceba1887d18a27e08654ee1746799b4e113385a27ebe5. 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/JPL802330015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416f1ac87229e0d6b668577dc7999e6a68a5decd79d4a4e0e93d78ad69f0d453. 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/JPL802330016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae275df7a62afc8224e8cddd3b859e51761a014e0c74b77a966c2ddbd0655e5. 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/JPL802330018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b1976b98ce269801a21980523a43647dc36f24f37889336613b5c9a9aa048d. 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/JPL802330020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aafcacdf53a8d46d5939d9d06259d13a99d176c443b8815975b03cdca58ea18. 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/JPL802330021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb3234ac30c71e63efa79911c264ad97935405201955de7f8baac280c4d32cb. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/JPL802335012.
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 0x9e39b3e2edc289f4f9fdfd29f7c95aa21365523853d6c275060032867bccfac2. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/JPL802330017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4ea1ab38c4c742c2e52f858f3ae7775ee7e1be229f85a1e4173cd3789b7a2d. 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/JPL802330019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431df907c73d1b5de86724c54174baa83cfa8cf7e52a2ff6c6913451188149e7. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/JPL802330022.