are a Japan-market six-piece group formed in 1999 containing Kate Pierson (of The B-52's), bassist Mick Karn (of Japan), vocalist Yuki Isoya (of Judy and Mary), Takemi Shima and Masahide Sakuma (both
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 0xc1580f47230d00e0f56a49386c3e1f8b4ca79b1fa160933fc46c882d0c2381ac. 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/9bf66ff4-3180-46aa-aaa5-039842c3005a.json and https://artists.proofprofile.net/proofs/artist/9bf66ff4-3180-46aa-aaa5-039842c3005a.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 0x15b3f2205766e9b0ca707fbdb4ed99ebc21bc66b6f6f19f2a70b4dcff4c9c223. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ESA012445611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a26829fae1e184be25aa70195f4d8563e52e411fc23dc216147cdc58cd811f. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:06:37Z), 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/IDA832111205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c558b743782da980feee6ac3226634b3dde2f422a2576f314b2dc549a93574. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:56:47Z), 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/IDA832111208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a69d5275c9d9aef2ff1e4ba01b7d94d67b49d3ba2f3966ec6dd08ae7b97b042. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/IDA832111222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34e5bdd53a6505a62e2573c98eaa5a4d2a15285ccd4ac9b86fe5a4fb6933e1e. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:50:35Z), 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/IDA832111226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46310589f3a9ca6ebc8a0d79a3ee71ca1c5422f9b246a7ca960538d5e9908720. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/IDA832111229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed296b83794530f047d1820aefa4d6d53c2384e47d111a36ded7e58eee3c7c23. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/IDA832111232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d40474acf97f35a12fa53dc2a6d09cc3bb268a7f8ea9b593749f7790c53d6d3. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/IDA832111233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8ccea63da3bb90f312d405be6136fcc7f5fa774b711bbcb6ad63543e708b58. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/IDA832111234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b040af3f2074a21d6ab5a5414013a7055e61ddd0f08cd2d71c9ec2179413ece. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:05:50Z), 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/IDA832111235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d0c08aee5ddb1fc9270030f5e1683ca0c9309e6c12e3e62f93d1780964bb5c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/IDA832111648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8a82435d7efc61e3b92e1daef8b6a96e590266431ca42208fd69350aec5b56. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/IDA832111657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1430ea98c9abdcdf66f1d58cf8c402926f577cf98f56a6d5b63cef6019a092c2. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/IDA832301885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9baefb8425c0dfacbd4ea689d46ec3a59671c268a7cb11d4719acdcb77dc5c9d. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:42:26Z), 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/IDA832301927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5038c924cb6a4d18185966a11191e046be584294e6cfb5e94b6f0753766578. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/IDA832303405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed14ebbcdbdee962f65e96b4f98c9c9d02408aa57d870ee7eac489818761ac10. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:51:49Z), 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/IDA832400264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8736834d65426068fc74d13363e74ae08e63dc4248c04b27b4204878c60d7e05. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/IDA832405283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285c67fa04be1cd3cb714745878e27f1a9fa75b15ad356c59a57daae191879d1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/IDA832111494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9154272e9b436e4df9da7f07bc699a8499f60c2287e5d9511f59b444c518c9bb. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/IDA632527018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7af482051c370c4c5b4e22ba0f2eda9936920743841fbbc5a197acf5ffb4a4. 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/IDA632527067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8b52db83265db140e31ec7d8633ccce53beddcbfc318c23dcde0d3b0ac221a. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/IDA632527165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7ed373beb9667f4a9021eb6699a3f6695de0fe82368cd9a98f9072dc38fe83. 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/QZXLZ2551487.