1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x161c8d96dd09ef3ad7128c6e66727ab1261e90e3aca5663d37bcad4ea910e76a. 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/91252b9f-26a1-4353-be65-08e1556fd393.json and https://artists.proofprofile.net/proofs/artist/91252b9f-26a1-4353-be65-08e1556fd393.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 → block OTSBitcoinBlock must exist at that height 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 0x8ddf923bdf099a20089a3adbcc83f4e86fc1cbe6738af4d58afcf123f5448c7b. 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/JPV500701961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbe04a35b5d59d8df493ba90b6e339bfffbb000ab7f8aac8fa2e844400da826. 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/JPV500701963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfbc11d049b5eec63d5f06115ca07181c307b7ab652941999aa406c10db7ebdf. 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/JPV500701964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a690467080e05412283fe0e0c898f2711faea5d4deb4bc86481b0917296273c. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPV500701968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5979ad4e518705aaa2f2b7212b5a9d824ad5a62e6730bd2e854d0a30acfd0df0. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:11:26Z), 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/JPVI00122480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d7a8e1dbc5aaf60b0b026c553025191356455d00b6c4d7cba60ea52181ccbb. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/JPVI00122500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc898c50428e637de834d346a682493b5d4e2ee3e4f85be733fdc4c7c85ad8941. 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/JPVI00122510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579ef8bcb22adbe3abd93d2a6368e85ca0fb1e4e7af4ff1ed4072c267808176f. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/JPVI00122600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbab9974cddc133ab4e85fc3bbf8a0360185c8502752e4f670dbf5ec28315f19. 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/JPVI00207690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9923dfafa05b6b11907432703bd530419c0a7421e8fc855e6c5ac7eb5cb716. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/JPVI00237790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02bf3f5831554f58bf2d83126c68924d44a4b9960309b3aced073ebd8404d246. 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/JPVI00237970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa82c6a44bde7ba7ee36be3e8c1bda3070d315c1c5984c5aee3514ac02d7ea6f. 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/JPVI00417050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c6b88307a815f67cc47a8ce05b6a2bf597fa1b71e053b3d77852482f9ec4f4. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/JPVI00539940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761db999ccaa05cc47db6bbc4bb61fd83493bb719472a9e3878aa535a2c4444d. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/JPVI01306750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d49b54968aba977db160b545ba5766ce3e1f62f9e10ffe228bed6889e44d17. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/JPVI00107100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b3969017105ad9b331f92af3efd35e6f2ad235e0833fe88b0d2ce6975e1f91. 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/JPVI01330050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9707bbe8244a96343d686b2ba906cb03f908195c35ec94b7e4cba8d01ca567. 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/JPVI01410020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef78adc1be52ef62d7aac01ae9ace4c61fdf3e4c0fd63eaf516148ade67af84c. 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/JPVI01410030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c9d243753742552d97d0ab806250116264860c5635216819aa7fc59c448901. 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/JPVI01410040.
まずは空手チョップ (Remix) feat. サイプレス上野
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09a1fc3b449e1dbd322e6d2afdde0b356c9632531527813cb4bb728d9432a74. 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/JPVI01410060.
STRONG ISLAND (Remix) feat. RYO the SKYWALKER, SKY-HI, SHINGO★西成
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94f4f953803dfe1c8566ddc9cb867b17654b699f686069da323444dea746392. 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/JPVI01410090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ee685b76dade488307dd72900a2c4c5e667283bd33455adcd7629d00422a3f. 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/JPVI01410170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc52e554abf11da7a12605aebf4fcf7349d4450cb6e1e57661d0ba5265d664c. 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/JPX601500044.
ベスト・ミックス mixed by オカダダ ～ビフォー・アフター
Raindrops～雨男の慕情～ / Monkey 4 (okadada remix) - EP
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5582394767e5f481d8ce4af86e835b2ffdaa04def5a2b9d8e0fea695978090. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPVI01526040.
Gettin' Hi 7 Mic (Gettin' Hi 5 Mic Remix)
ONE (feat. SUGAR SOUL & JESSE (RIZE / The BONEZ))
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87288156379d20013fae2f10faa8ec1b830af88ff8ed6c924554b9ffb4e24333. 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/TCJPF1785898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe959db0911f902ba94341d1df2e710efff486d88539fd3b7038884c4305f46d4. 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/TCJPF1785825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8801df058474bd9efec24a3cdf9f43e082551d1c8896123b3430c5e5b13942e. 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/TCJPF1785895.
ティンカーベル 〜ネバーランドの妖精たち〜
CHIKUSYO!! (feat. Akkogorira & koumedayuu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae8863af443051c1ee049c4b0d160c8512790a8b4b31568c1ea031cc2447f16. 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/TCJPI1967159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1913fd3486192c744f7358adc6672855fbcc3d828298e687b71ae80b439e895. 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/TCJPI1967161.
Cuba Libre (feat. Mummy-D, RYO-Z, LIBRO & DABO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97a35b6f84e5e139d678c4c104d7a450bdb8eb3699930bfc2b29ffec06c6cc6. 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/TCJPI1967165.
lingerie (feat. Cherry Brown & NAKAMURA MINAMI)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9fc89356b59a6b7944d290d9e3c3d83b2f258f4ff7e7720c332c87c5e3819b. 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/TCJPI1967169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e70341e8cfad7981adf5d27723e1c724d8e6fd7ae3b74f61c989315a7d5aa56. 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/TCJPI1967171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2874a2908ee812d514106abe6a11e9cd146a31ccd833ca4f8a77b3fd38fecad8. 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/TCJPI1967173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b05d0aa75708f2512357e0b12a565b86b57778d4fd63fbae7d88f5959322dba. 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/TCJPI1967176.
STILL HINOKUNI SKILL (feat. karashi renkon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2774019638cf04b25bdb3392895f46a2be4d566783c3eac51731f96fc879dada. 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/TCJPB2458543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4718cea7de992de1beed4b88f6408e1c7d07350d921ee0e52d2c13269e993d22. 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/TCJPB2458557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09809ba085b84dc743f79d37be6982399be8e408a50d8ba0f28456b30aad30fa. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCJPB2458593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16e202399713eb4ba3f28a37a816fbf8a232855d3e59c551526e11bbf5649d8. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCJPB2458700.