is a Japanese electro/rap duo which formed in 2011. and made up of MC Itsuka and DJ Gonchi. The musicians work as office ladies at the same time as performing. In 2015, the group made their major la
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 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 0xbfd64d03c33e766626ca36424e762bf3332cf91693507bcd6d382f57059a4e1f. 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/e5d5ef20-251d-45a8-91d7-79f4aa10ceed.json and https://artists.proofprofile.net/proofs/artist/e5d5ef20-251d-45a8-91d7-79f4aa10ceed.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 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 0x73e1c944686c46ea3812dcd50a4bafd3f399a9af4a61b54e6ae082e64bd1da84. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/JPC841300701.
Tongari Young (Theme song for the movie "The Boy with the Dead Eyes)
とんがりヤング (映画「死んだ目をした少年」主題歌)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2653bd5b89444e22ea9a322b7ba974440b9b4f80903432d642f2df514f0ac3ed. 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/JPWP01570565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3ee162e80860ef213bb111ac72a6f795914545a001afe66c20f29d313657a1. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/JPWP01570566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804c6ca5ab80614c0113ccf11171afa4b010b24c2d79cde1d663ff7ab842513b. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/JPWP01570568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d928acb09f3dddc2b6400ac0310240ec3e2219554b3a295a10853a7b03d1c7. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/JPWP01570570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2346ead96dbee703749a793d8fddf773484dfcf9fd8c04e833b5481b1d12ffc6. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/JPWP01571840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1408beaec37f51e06688b7fb13ec913958dc2b8b82ca8c250bde8643851feeb. 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/JPWP01770211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08fd6d2affea6e589ca414fcb457e000ded16e606d2885da2c58c3afdb519c2. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/JPWP01770215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5aec703ed3e83d7216c1d0297c5b7998ec7219175d65d2b4ec0355bc186a2a. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/JPWP01770221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dab3d8b1c095ab69e5255a1933fecc2dcd93c84f4695949e634a211bbf17b28. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPWP01772439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3598b94a6a98e73044d828c662f6563e26141b74296309f54919a826e35c7480. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/JPWP01772441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a1617f97e1ce349621c7d08e28d92c242b039f08c8e8c0c8a08508865ce3cf. 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/JPWP01772444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8dd91a5e2f1ee12ade894d7d1a33e97e2626709c89596ecd8628ea43e719d41. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/JPC842401301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8dd91a5e2f1ee12ade894d7d1a33e97e2626709c89596ecd8628ea43e719d41. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/JPC842401301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b24fb6524708dc468bb9245a126529741be9a8855d98d94697640aadbe910b. 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/JPC842400801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3cbd505e4004823127d2a76e7ee08e0854ae0c85e5507de829ae6f74194e9a. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/JPC842400401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f9f55e2a377e4e36f16091dae1746917a95c31284caca4fd74a3c7a429d55b1. 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/JPC842401305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34db4c8cbe79f9783298eba31e47249fc4487855ab6f7de8d6414d3c8f72f50. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QT66J2585279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34db4c8cbe79f9783298eba31e47249fc4487855ab6f7de8d6414d3c8f72f50. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QT66J2585279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ee54aa954a70c4ee23dc6128207f309ee75b34dbd16639d088d8dbdbf75e40. 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/JPPO01705829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ee54aa954a70c4ee23dc6128207f309ee75b34dbd16639d088d8dbdbf75e40. 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/JPPO01705829.