is a Japanese punk rock band from Kumamoto, Japan that formed in 2010. They were signed to Pizza of Death Records in 2014. On August 25, 2021, it was announced all three members tested positive for
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 0x03aeb78abca7daaa8f2d485eac0a1f7501840c246e6bff7cb415343188ce75d3. 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/813f90bb-7bbe-46f0-ac8b-4c5b5dba9605.json and https://artists.proofprofile.net/proofs/artist/813f90bb-7bbe-46f0-ac8b-4c5b5dba9605.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 0xef6c3e15f24beabe62f6a27a4a6d94108e33a9e695c8a679e0f6d87fa8743c7b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPH201500045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf013726dce04ae4febf15f5fe3ddd2ac4781efbd503536bc87aa75dbcd25be2. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/JPWP81800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5987ca0d542f28058c00989d7b52a8805dfefad43353b99397d0aa9982c2a9. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:53:35Z), 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/JPWP02000346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c56a2bacce753deeb51607d2b100e864b1543c4f806eef214b9c13f515aad08. 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/JPWP02170114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd78d5dd6975510fecf542b9bec22163d2042a337996497d2e0674f9335f634f. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/JPWP02170115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfbde6e12cb51d09c00c74dca0c755c9286e109a5499d3123588d08da7113ddb. 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/JPWP02170116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811d4f66d2308b591b1198326f6c8cf915518352f34b4f1d72f544dec4604592. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/JPWP02170632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a43bf0e6b3ba1548509f2a870751cd53ec9bb5e153c467f47f33bac9585179. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPWP02170633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c684256f0b17556b86b7ee0ff836585fa63134b3ea901270eddb943df3f591e. 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/JPWP02170634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf512319c1263338630a7ff05e2d69271af1b871720a9767c7e271e1c0dd2a201. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/JPWP02170635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4757de04a630d6bc82c89acb2774ee5f0644ea333b0e69fe95622c44f65edcaf. 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/JPWP02070730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce8648276c338ed69a749384f250cc9998e8bb265ebdc28e45458b726e60c89. 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/JPWP02070731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7c293aaed8a4e7f34ce3952adff7d62d03d5ad8250e5bfb3c2e2eb82612aea. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPWP02070732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6f6d83177f01a99c5782f38dfdb64959f522777954253e874d905dac524aaa. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPWP02070728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b3ba5c9789b56910e7c23758e24221e2ff4a256a95ae8a0f839b8b030172a6. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/JPWP02000147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1da4889b45d20012a2a12e4483ca999832b2b57eed5cb588169e0467d8e5d9. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:43:08Z), 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/JPWP02070727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4eae24ee3cee25b94bab6db43358c5ae6a8ff617d3e4c5f97baa158615e05e7. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:37:00Z), 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/JPWP02070726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c56a2bacce753deeb51607d2b100e864b1543c4f806eef214b9c13f515aad08. 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/JPWP02170114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811d4f66d2308b591b1198326f6c8cf915518352f34b4f1d72f544dec4604592. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/JPWP02170632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1228b48e5dfeee7a2073a1d56ae6cd21240a7546d0b59b8a37a1ed9efe04ab. 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/JPPO02200623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c8504c8b25ff644acc085f9e811d6363e980f24e591a336b18d5fd14fbf7c5. 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/JPB592301103.