are an idol group developed by Avex Trax and Ishimori Productions to commemorate the Kamen Rider Series' 40th anniversary in 2011. Each of the group's current members represent one of the protagonist
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 0xd3b8a8bc38cc784a6c59729cd91b4fd7ccdf996f5cd40309b74ae1dec35ac0d0. 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/87860037-6663-474c-8510-ef2bec2988df.json and https://artists.proofprofile.net/proofs/artist/87860037-6663-474c-8510-ef2bec2988df.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 0xe3a3d38ec48856746b1ce5a339d879b1877db3472f60d95f6d5237584ca5e6cf. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPB601301796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e786ab52fdac5e63696eb8e19cd301af0e7b93bcd92a078ad74056f32e362b. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/JPB601301802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf024ec776512d37dbe5c37966072bcf2b718ffdbdb59c9334839956552837a92. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/JPB601301804.
Journey through the Decade - 平成ベスト 仮面ライダーGIRLS ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d056c0e27a043cbe01ec476e6e35e5043de3252d31254c109768ccb2cc9de30. 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/JPB601901340.
我ら思う、故に我ら在り - 平成ベスト 仮面ライダーGIRLS ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b718790150e20371b6943cd031dcaaeef24a20d1e160f76b594f22c2f7a4aa. 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/JPB601901343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab4adf233f12b51d21e0f4327266b7485d7a968a23c64ca99e56892799d4453. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:30:58Z), 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/JPB601902641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559de9705231b564d77ef0f05ef7d3e336195a2869640039e7aae4827384c7c9. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/JPB601902643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac430d73560713fddc36351dfcc25f89176e25f33b4371235f79b1315a2cc890. 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/JPB602101388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8abc2fef84f291e7cffdda756e7d86bd8b74bbfa04b4983972938dacd18c36. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/JPB602101389.
Switch On！ - 50th Anniversary COVER Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8c261b087e752b147289bcda8872f6e8f5ed4cbde7cf66e794e9eb05673cd9. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/JPB602202044.
W-B-X ～W-Boiled Extreme～ - 50th Anniversary COVER Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5259204ad5ee919e8b3cf0ca13dc06756953b04774e57e5ac0d484dbb7ec76. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/JPB602202043.
Break the Chain - 50th Anniversary COVER Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d8ec956c9a2b4324a514085db4514dea91b09fa4f86a19b16ab62dc9611f94. 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/JPB602202042.
ガッチャ！101ケミー (『仮面ライダーガッチャード』挿入歌)
ガッチャ！101ケミー - 『仮面ライダーガッチャード』挿入歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac2ac375f543e153d8cb692721e1e038a3383bb842cbbf718e2a841744d5a84. 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/JPB602401773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039f3a23427533fff1cb2ed3ef29524c87c1ad5719d09eb85485685765ed415d. 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/JPB601305149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd664812f2ffbe851208a847526173350f9efffa5972c6d69dd0b38370da43be4. 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/JPB601401161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac2ac375f543e153d8cb692721e1e038a3383bb842cbbf718e2a841744d5a84. 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/JPB602401773.
E-X-A (Exciting × Attitude) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x317853437cec1c38d90a848087ecb76d24b69e269f76f38494291cf1fc69b26f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPB601305151.
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 0x24d4f5d6042753b7190d133df32e0a95df91be4a4fbefba216fcb91ecd01e018. 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/JPB601403403.