is a Japanese all-female rock band formed in Higashiōsaka, Osaka in 2009. Lead vocalist and guitarist Momoko Hayashi has been the only constant member, with bassist Pika and drummer Misaki completin
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 0x05b8b74aa1c700503a926c998d18d6f08d637553ba33b57326232e9f64f81111. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2c55215-d99e-410a-b3f4-9aa1db7d5644.json and https://artists.proofprofile.net/proofs/artist/c2c55215-d99e-410a-b3f4-9aa1db7d5644.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 0x4e4cd3b90a6708bfbff9f7ff4b6787b294063877e123cf7179e50f421c1849ca. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T03:43:29Z), 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/JPR751500953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8305a6548f9199ca331e576c1849db5307227e32468066ae81a3762742c9e61d. 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/JPR751500954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fbf6e236c9a7019cf451e3ddc5a91b0d92e9700df1dc7bba63b6d1eefd3b49a. 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/JPR751500955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c2f8660f0a65c12ac88aff8a14ade11bccefccf4683a70a2d3852e300eb200. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:19:21Z), 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/JPR752200657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7cc1dbe771e5df84b47d1a7f15f9887bc2223d375a69c5c57efeba55c233b3f. 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/JPVP01803302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442c770e56674c7be3d27670bba9fefb68b475e69e6500aa4a638ba470aaa01e. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/JPVP01803303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb946621758e6dd8bef0a924b6082ee2d3739b6aec41e043d90c3ef1a82eb32a1. 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/JPVP01903803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcab19d277ed601a516376cd47b0e200214c99bcafb2bd90c06512661f599057. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/JPVP01903804.
大阪城ホール単独公演“拝啓、少年少女たちよ”
“Haikei Shounen Shoujo tachiyo”Osaka-Jo Hall One-man Live
LILLY - 2020.11.23 Live at Osaka-Jo Hall
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95faec9c666eb97a72eeb049b2180865c47fe1028dc1ab8f963b58d13ee7b71. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/JPVP02102601.
Ikite Yuku - 2020.11.23 Live at Osaka-Jo Hall
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5426c2020e48e09cd69ae0c12ef42dab57d70400a8f3e95068d10114c409cc4d. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPVP02102602.
Bokura wa Kyou mo Kuruma no Naka - 2020.11.23 Live at Osaka-Jo Hall
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838534e0babe62670da296099e92ebb2618c6cd3a7fff1ac6bd85e5295dd5892. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/JPVP02102606.
大阪城ホール単独公演”拝啓、少年少女たちよ”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd641eaf2b0d51234f9e8f951cd72ce3d50fd79cfb46b497ac641296719079dc3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPVP02107702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac9ad831a50605fd087be713224fc9af9d9685f107e36ff3aa706bbbdcbe1be. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/JPVP02107703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe2cbfe989bebd60cc382b9f5b7f428204725648ad1892f256545a9b95c4077. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/JPVP02107704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73a17bbcfaaa7f3bdd3aaf512166fce13b122dd9c8d015f8be0cd0867b984e8. 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/JPVP02107707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec5656e1926b4e7cb45a9cd2d4d24d15aa59dbeba7b7dbd9c71295f7d181684. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/JPVP02107712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb118e6b4a751f686efbafebc59362eafd1dfbe6382e975adbf122ced220e601b. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/JPVP02107713.
Hump Back pre. “打上披露宴” LIVE at NIPPON BUDOKAN
Hump Back pre. “UCHIAGEHIROEN” LIVE at NIPPON BUDOKAN
Bankuruwase - 2023.5.7 LIVE at NIPPON BUDOKAN
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ebd5e1383f96470a14106fdad477af82cfb0c80f40e85adc46d03cbd6361c3. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/JPVP02318705.