is a Japanese rock band formed in 2013. The band consists of vocalist and guitarist Shinya Ishihara, bassist Kazuki Akizawa, and drummer Yuika Seto. They debuted with the extended play (EP) Country R
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 0x89fdf65d83a762b68f7751d84b3abc34d8355babc0db9a69433dcf6677e0701e. 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/1fcec096-b931-43fe-981f-df85c95bc9a2.json and https://artists.proofprofile.net/proofs/artist/1fcec096-b931-43fe-981f-df85c95bc9a2.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 0x343e895c5ab862a35d2ffffff449949467721e6102b22e064dadef3506c3c33f. 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/JPJ222101667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e718a804c55dddebe55c00467f25f5dbd2068b3f5f2ffd1d13954f0fc1f9132. 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/JPJ222202026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ae93af3ef3b75b680b6f99ebcad0d89963cd171efbcdb43740ef8e108aff97. 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/JPJ222403323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57ffa4422f1fd29647a34f761a1a3a52751e90ef0b5cbd18f1d99db6a4334e1. 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/JPJ222403170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd3d4acfb474b5ac43367e1bbb2cdcd5d6ad792a1ee08369c28381175fc2546. 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/JPJ222403320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e633d6c6e56a4fbef8b383083ac8510383265035e1cc5d3a27f14481bf8e6fb. 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/JPJ222302601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb361ed25c37174506290480fd72e6f09fb49fec458e24c45af474ca1e27db9c4. 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/JPJ222202170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e718a804c55dddebe55c00467f25f5dbd2068b3f5f2ffd1d13954f0fc1f9132. 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/JPJ222202026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd343107b8852af2585b795c64afb08e011d7915f9239718707d70d6c066d58d. 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/JPJ222001498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10dd852c98c15aff0f756d7650b50837efd903f4bfcd4ac9af4e89925cfec584. 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/JPJ222001401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77c927f01799c5be847153de0677571b6d905fe25449b905b5243e55be7fd42. 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/JPJ222001500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cbc231d60d0dc5ce8372ee5fdbef4a6c6d75a451b8b42d6d646e4a6b859598. 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/JPZ921802664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe70e73bdc83bb1d77b9ce82868698d01ac56e01abac5261bd1926ed15598cd5. 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/JPZ921704025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947a4396c20b904048ebe8d04af562874a12b5d91b2a48b6d82930c6ae57abeb. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/JPZ921704026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76302d6768adb337f1a3869ccc64d669f3a46dc52d24e21df0e753beae9e4a30. 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/JPZ921704027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd3d4acfb474b5ac43367e1bbb2cdcd5d6ad792a1ee08369c28381175fc2546. 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/JPJ222403320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57ffa4422f1fd29647a34f761a1a3a52751e90ef0b5cbd18f1d99db6a4334e1. 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/JPJ222403170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b9f1e3e5c35e5a064f0a640b1c02d14c9ddbe9b30d3fcbcb8f3c772e0ced04. 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/JPJ222001502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb361ed25c37174506290480fd72e6f09fb49fec458e24c45af474ca1e27db9c4. 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/JPJ222202170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10dd852c98c15aff0f756d7650b50837efd903f4bfcd4ac9af4e89925cfec584. 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/JPJ222001401.