, born 4 March 1986, is a Japanese J-Pop and R&B singer. Born in Saitama Prefecture, she began her career in 2009 when she signed with the music company Universal Music Japan her first recording con
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 0x64a45a3e48967cd7b135b518533a9c6850889507da10cf2efafe5ce9be2b53f4. 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/b8b7d434-ddb0-4fe3-b697-f2057a978245.json and https://artists.proofprofile.net/proofs/artist/b8b7d434-ddb0-4fe3-b697-f2057a978245.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 0xcc5a78f4e9125a1b2580ef71daf132db849968d16eb54a3a89b46bcd49974217. 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/JPPO01207058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf67e156e0e372b93eb9f7d77e32b91e844dd8fba686045c2c2586cd286a3c34. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPPO01207069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26cd88ef4fb5426d12ffa7cf0fd86beed5386cfb93d417ec6c687fc945d8440b. 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/JPPO01155520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3f435798b002b3437e5910385ff54b4c655004a424c102e21d232e554498c1. 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/JPPO01204152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff01ebacb53ebe65cab71bf67c13f6e1e8669280074d923a973d83223b302785. 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/JPPO01207072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bbefeb9187fe27ec3b0c0c5873f6cfa876fb475f68271e4ba3fac3bdd944b2. 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/JPPO01207073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09bf1faf8ad5087f40c25d5c104551cd9df4ed063cf4c37dc95219f71ffcc09e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPPO01161490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c906395acc65195a56f74af50174ed4da25807cd5bfc93de245ebacb0d9d380. 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/JPPO01207060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dfc1efb49da0a50f3dd2f8717c3ff2afca9814ce71b4b9b31ca7ef6e9e774ba. 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/JPPO01161491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6f377cf54ba48e0bc214b9e2685fa9ec728731f260a28acd12fdaef19187d5. 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/JPPO01207074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa632d00226b980b0ed019bbf69dee9c09b41e4cdb323f3e6535faf7a40e9c659. 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/JPPO01204151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09bf1faf8ad5087f40c25d5c104551cd9df4ed063cf4c37dc95219f71ffcc09e. 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/JPPO01161490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26cd88ef4fb5426d12ffa7cf0fd86beed5386cfb93d417ec6c687fc945d8440b. 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/JPPO01155520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03db8d47655a7b450c1e501b9aefa04a101dae29b558f9e04907cfff78bf39f8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPPO01086380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f03f1639ff66a7156feee367e39e384f3c6337f07fdb9be5d87904cf6853ba9. 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/JPPO01137971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83370f210c0a7f01eb61b3d038ffa28e32a376d3c331cb42ff5a16a4bcb1fb04. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPPO01133800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97358f6adcb4fbd852d87593fb57fa6c5ca3516c4c7de0e2c46e3d7b3fffe84c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPPO01139287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d85b1017f47e8f75951832c597c81ea5629a72c2fdcb6a7ef26dbf6cbee0c77. 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/JPPO01148812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6c812b0c3e92fcbf345b96715e7506873c45dc144e01435a797accc1413e20. 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/JPPO01147729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac876b11a4fc19574561acfa28393766908528bac37dfbed00d5b39eeeaa3e9. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/JPPO01149658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ffb97ca2d00df7c1b824af7777a8fd04d7ba8eb78d7d8223659ab72ab17d8d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPPO01137928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7599080d2ce283dd129d2b447a74b4ff54a055a3bfe6c39a69404d62d2a98315. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPPO01101790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf6e7be9dc50e1df9373bc862825d7b5c44c15fe6c48b6e91c77c93dc7202f0. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/JPPO01149660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b375fa44e9901ad1e78646f57e2b0219b373e568640070ee23da912bf25f193. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPPO01143330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2ecdecd583f14ad7f2d08edcc39ee48f4b07a33e253c4efb9fb07946a54ff5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPPO01116560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4343980140547c926117d54cff21455f57cd727f22f759d36ac7eb282ad273c. 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/JPPO01149661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27e2809a200f52f47247f377603dede2aa7a20f4980bf15b032586ef016a74d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPPO01143457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e4119f7155dae8b8c8eaeee40af1356273bd75b10f3813402f14c1bf52c6f4. 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/JPPO00997940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6bdb3e3e34ccc9d9d1e76f91324c9bd3f2f7dfee533315cbf577cdb8b3fb62. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPPO01013410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b50506eaeceb2745aff9a8176ca3463c643a68f0d038577ef63b9b0a47bb5a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPPO01013440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e31c1ee1e61e3395bb42d29bf14eb5af1270d98824f9926c95de0c80c47927. 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/JPPO01035730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d109b8f5523f18ea0cc58568407327391e0158e56359dc7fdb3ef9ee15c07ab. 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/JPPO01064210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e1fcd5a38b6482cb466299c09050c5d1ed13aa14a85dfbf7a9d69a51c901ce. 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/JPPO01064220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e8b6e4f8ee2152997960d20641da2b08136fa534affc002405572704eb724d. 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/JPPO01095750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7599080d2ce283dd129d2b447a74b4ff54a055a3bfe6c39a69404d62d2a98315. 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/JPPO01101790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2ecdecd583f14ad7f2d08edcc39ee48f4b07a33e253c4efb9fb07946a54ff5. 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/JPPO01116560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ffb97ca2d00df7c1b824af7777a8fd04d7ba8eb78d7d8223659ab72ab17d8d. 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/JPPO01137928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b375fa44e9901ad1e78646f57e2b0219b373e568640070ee23da912bf25f193. 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/JPPO01143330.