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 0x5cc221f5353e0383a33b144da8981698b93a08b08624f1a09614ffd8ccd20bad. 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/df6d888a-e5bc-4bd3-98fd-32391df4a65a.json and https://artists.proofprofile.net/proofs/artist/df6d888a-e5bc-4bd3-98fd-32391df4a65a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
あんさんぶるスターズ！！ ESオールスターズ「BRAND NEW STARS!! 」 (Game Edit 2020 Ver.)
あんさんぶるスターズ！！ ESオールスターズ「Walk with your smile」 (Game Edit 2020 Ver.)
あんさんぶるスターズ!! 6th Anniversary song「FUSIONIC STARS!!」 (Game Edit 2021 Ver.)
あんさんぶるスターズ！！ 5th Anniversary song「Walk with your smile」 (2020 Ver.)
ENSEMBLE STARS‼ 5th Anniversary song Walk with your smile (2020 Ver.)
『あんさんぶるスターズ！！』アプリ主題歌 「BRAND NEW STARS！！」 (2020 Ver.)
ENSEMBLE STARS!! BRAND NEW STARS!! (2020 Ver.)
『あんさんぶるスターズ！！』アプリ主題歌 「BRAND NEW STARS!!」 (Instrumental)
ENSEMBLE STARS‼ 6th Anniversary song FUSIONIC STARS!! (2021 Ver.)
『あんさんぶるスターズ！！』6th Anniversary song「FUSIONIC STARS!!」 (2021 Ver.)
『あんさんぶるスターズ！！』6th Anniversary song「FUSIONIC STARS!!」 (Instrumental)
あんさんぶるスターズ！！ 7th Anniversary song「Surprising Thanks!!」 (Game Edit 2022 Ver.)
『ENSEMBLE STARS!!』7th Anniversary song「Surprising Thanks!!」 (2022 Ver.)
『あんさんぶるスターズ！！』7th Anniversary song「Surprising Thanks!!」 (Instrumental)
『あんさんぶるスターズ！！』7th Anniversary song「Surprising Thanks!!」 (2022 Ver.)
あんさんぶるスターズ！！ 8th Anniversary song「One with One」 (Game Edit 2023 Ver.)
ENSEMBLE STARS‼ 8th Anniversary song One with One (2023 Ver.)
『あんさんぶるスターズ！！』8th Anniversary song「One with One」 (Instrumental)
『あんさんぶるスターズ！！』8th Anniversary song「One with One」 (2023 Ver.)
『ENSEMBLE STARS!!』9th Anniversary Song「LIMIT BREAK DREAMERS」
ENSEMBLE STARS!! BRAND NEW STARS!! (Instrumental)
『ENSEMBLE STARS!!』7th Anniversary song「Surprising Thanks!!」 (Instrumental)
ENSEMBLE STARS‼ 8th Anniversary song One with One (Instrumental)
ENSEMBLE STARS‼ 6th Anniversary song FUSIONIC STARS!! (Instrumental)
『あんさんぶるスターズ！！』9th Anniversary Song「LIMIT BREAK DREAMERS」
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 0x3a4280ba8670a31d51264e02182bf6e4061ebdbee3cb0854af94071c4aa10b6f. 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/JPD642400243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8386be5e07ea7b5f911e38dcf715bc541c2375d2c3b230bed02ed18a8d04718a. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:54:13Z), 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/JPD642400245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7658eed1cb0a9504df9bf5fd0b593668df9d2b7fadad1a2de3dc40aaf5aad6bc. 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/JPD642400248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964b8e42b559493fa3b19a3beff7f1a05e9c21acee03f1dad5ea72782b41aefe. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPD642400249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30cd9a2800f7889d49544ac1d76c3bb7f32560d3f82b5a6fb631a9e118822b6. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPD642400252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75b27e9e6ddd1030628e8f5bc60aab1dda430dfde811e3b9d80e38278483422. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPD642400253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc954aebae5ab88dfbfa742fd6a51ecfc19ae7acc81b0db39cd0c49cbbf1220dc. 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/JPD642400255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e1103e89ca845e008154cead5acf1cac8ba956bbe4164ffc3d549c4fa8b84c. 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/JPD642400256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25df21e3bf52f16d432876f044f32146ca6fbedf6587bf36f80205b110406be. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPD642400257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4fc9f217cb68d991c137a128fa41a5a324466d77ca82acb70eb69db44cd836b. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/JPD642400258.
『あんさんぶるスターズ！！』6th Anniversary song「FUSIONIC STARS!!」
あんさんぶるスターズ！！ ESオールスターズ「Walk with your smile」 (Game Edit)
『あんさんぶるスターズ！！』8th Anniversary song「One with One」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a92739dd6c6ce8127c62836a95b0d4f42fdaf216a6031c94cb8b4dade3b62b. 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/JPD642400334.
『あんさんぶるスターズ！！』7th Anniversary song「Surprising Thanks!!」 (Game Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe345ba226911fffb8fdf54c1d9d45b91d1533c2b5bfd0579997bac99727c58d8. 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/JPD642400346.
『あんさんぶるスターズ！！』アプリ主題歌 「BRAND NEW STARS!!」
あんさんぶるスターズ！！ 5th Anniversary song「Walk with your smile」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9aeb877267d7dac9c3acc7b005bd722a9d0ae9c2f5f14299161adc272e7b193. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:45:27Z), 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/JPD642000363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922310465dab0143cdf9e5f07cfe0b4581739dd6ca460c3b68b092b76f5024d1. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/JPD642000364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aedaf7d237e8ff68213b0b9f51aea3deaff0765514861555e4440f96ee9c953. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:01:23Z), 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/JPD642000365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a7594561ab6167b7f255031baf343abca08b25318a2df8590c6a7a2042d96a. 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/JPD642000366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c73ba12516a68e9f0378f09f6723dfcf4baaad7549689f4e5571ee9628248a. 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/JPD642000367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2310dcc88051cd0ddda1bae6e8db9880e48c8fe63b360a42b9d0d15484479872. 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/JPD642000368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9768975befe9fd785bbbadc8ea9b1323de36ab47c13935ec913c8684cf308b89. 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/JPD642000369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8550f3be183dc4f67f4b5d0bd9f42bc5d81bd47fe0645d67f2122fe0ed904b. 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/JPD642000356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179f82ad4b05c6bf4bddfa24f14a6808525daf9390f46d6fd5a7d30300061980. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/JPD642400339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013f3637e0126c8933f43622e84cb6dcc3883ebfca8dd55007bcb5731c091307. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:07:42Z), 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/JPD642000358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b57ebec18a9f26b0d24c817c15c4b1643e55153bda3562b476a17bd69cd9cf3. 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/JPD642000360.
Walk with your smile (Jin & Akiomi ver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0799fce735a19bbff0eaf1a7c8ac05b7140bf75d01b0431729e327e78f13acb3. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:55:42Z), 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/JPD642000362.
『あんさんぶるスターズ！！』6th Anniversary song「FUSIONIC STARS!!」 (Game Edit)
あんさんぶるスターズ！！ ESオールスターズ「BRAND NEW STARS!!」 (Game Edit)
『あんさんぶるスターズ！！』7th Anniversary song「Surprising Thanks!!」
あんさんぶるスターズ！！ 8th Anniversary song「One with One」 (Game Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f7ec4de6bc43345bf022596851215d00f7e12e3fada7b125e5328ef8821269. 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/JPD642400340.
『あんさんぶるスターズ！！Bright me up!!』アプリ主題歌「BRIGHTEST STARS!!」