is a Japanese girl idol group, formed by Stardust Promotion in June 2015. The group is based in Fukuoka Prefecture and is managed by Stardust Promotion's regional Fukuoka office. Members NameColo
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 0x4ad9f138e4ff7e5f7f97e62e071b873c72d681899acd2309100c65e8ed87de39. 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/869b4506-961b-49cf-b057-519909ea4256.json and https://artists.proofprofile.net/proofs/artist/869b4506-961b-49cf-b057-519909ea4256.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 0x428f6ecee21c4bfe091795ffc0715d6cce6d035d92734fd17401ba81a70e5124. 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/JPVI01605680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20c6e492dbf48ee530117b0154c172f1f12350bbd3843aad8c19bf527c1b852. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), 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/JPVI01815481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a52a1f971cd264c054386b85e4fea4da2784692bc8b1e861e943d645af3f20. 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/JPVI01827560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9453233c6e3ffefa269958d60d555e5437e2ea23f59b94968b49b97d1f66a45b. 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/JPZ922011102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a0548010e9725b1a5363529e6105d92687e7fceead17c5f213ea852edb1e73. 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/JPR502204514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70e7d789e5b98380c47022341578aa7e183b98852ab966e22c39b962c2e2c4a. 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/TCJPQ2129369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7d1e6d4ccacabc7e7328ea30a0d49b770a1e4a5de90c9b34a7a7acf2274cf7. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:27:15Z), 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/TCJPQ2113103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3448f3c455ad1b10032593b79c052a69abb328a4a2fa2e690a19a7004e0feae. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCJPR2216223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b56339685665a5191e26b77e1834be302e147247c488492be4e140d454bf0c. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/JPK402201127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f47874d226bb860b0b6cd7a7a1e24a1474c49f64a1c3acb4df8a567a7142cb0. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:45:23Z), 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/JPK402201128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1759954a6235c4c5474904f95db42fdacf1122b39732c8d9791e061c6f52f0e. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:11:16Z), 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/JPK402201133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ae121b62ec1ae44c86ffc4cf405c9c2c43ed1375541a99dd6ee1612c02a06a. 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/JPK402201134.
Antagata Dokosa - Sweet Soy Sauce Style-
あんたがたどこさ〜甘口しょうゆ仕立て〜
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135122670ff6978dae4c5f35edb9ec7658feb101fd180a7d2bfb01f2d5778773. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/JPK402301156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e267f76a4c9722fb98107d61efa46f0caaf44db44ccb589ac327cf21c474d4f. 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/JPK402401198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e267f76a4c9722fb98107d61efa46f0caaf44db44ccb589ac327cf21c474d4f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPK402401198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe39ce5b14c9f137b73f2f1fa0b35cac874d5631460e2d93367c888463fa536b. 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/JPK402401201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3e7d898053a78779e52c5085017860782ab222c0f86268f1eb5fa6f45cd78e. 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/JPK402401163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135122670ff6978dae4c5f35edb9ec7658feb101fd180a7d2bfb01f2d5778773. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:56:05Z), 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/JPK402301156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa107be55ace12105747eb3650abbb45d4eeabea1f922fff27dc38357b3e81eae. 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/JPK402301137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ca50290df4f0280f943db1d47a07f1e0d27cc05500ba0b295cd5575adf2a8a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-19T23:50:09Z), 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/JPK402301155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99d49cb1a5521bb58f36295ad3c78a949f27f027981f8779efebf2a067fe414. 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/JPK402301139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a4a272ec0b0f79571b5b629c2ba356ba711253910eed2de8223434245ad746. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:17:29Z), 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/JPK402401202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a4a272ec0b0f79571b5b629c2ba356ba711253910eed2de8223434245ad746. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPK402401202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865670665ab3d297d5ecea48edf0eb030edc9b5882c54c1f2c1d3ee4b0db8a6c. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/TCJPL2557459.