For Tracy Hyde was a J-pop band, formed in 2012. The group started as the solo project of Natsubot, real name Azusa Suga, before adding more members over time. At the time of its breakup, it consisted
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 0x51f19213f8a5a7024d9e900f4d15e878bcd7470b7c10d96db9e7b03bfb441dc7. 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/a7a56665-b7d0-4fb9-bb3c-b5883133b55b.json and https://artists.proofprofile.net/proofs/artist/a7a56665-b7d0-4fb9-bb3c-b5883133b55b.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 0xac6f48f35e010ba3da932479150aedefa2f9d1cb28915b08e770f957e636f876. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/JPV501600703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e02b26a013ff6eb6f00deb1b5739f1ebc86ae4ca825966d48f000911964e774. 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/JPV501700612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbadd9a54de3afcac57439c521f51f39827241bda22f0f27fed9495723447dc26. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPV501700614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a6df5c1d47bf6a6bff1691a921d135e1d40f2698127851021f43172a81cfd4. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/JPV501700615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270332c6c171292a5a75f8e485df6d3e27becf31fa12a32ef221273ad18d6ce3. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/JPV501700616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbffef53161d840d5f0b192325ca5cbbc27292d3e5427ee3c301c92578c9e26a7. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/JPV501700617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f6867403a85408e34a14bbe1f7634dcf7884191dfb089edadff676ec1cb01b. Chain 2 (Bitcoin): anchored in block 958863 (2026-07-20T10:27:46Z), 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/JPV501700621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cec9a6a2167ae7acb26dc39f9e7ce2ab061b2445e4c73034b7f80dc7c345ef. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPV501700623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b7e991294fb92f978660f28cefab3d16757dce83af2d71ad26bb03808ee50e. 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/JPV501700625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828264961bf937da7c60be7924af4cbd435690d5885b947a1c8516edb7394b90. 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/JPV501700627.
Can Little Birds Remember? / Girl's Searchlight
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4985b3bd418806bb6ce43ec9b6ced22eb290f29cbc568700c67a031d055879c3. 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/JPV501900386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8220662cccb41f4d7c3a185336efec5b3c929266f26ca94e8f6636710e05d5f5. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/JPV501900387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bcecb510a58b9d6a81c8615b96c896b5fb56315f338715b820b1d90c0e7753f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPV501900388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9575208c2fb984210a79fc7481bb1d53431d1381faa2593ab2590c84f2966a49. 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/JPV501900389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21493f521ab23e8578e5a2c86b5437e1d37e2bc5d64bbda35f784f847a558e4c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPV501900390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc745b8694dcd5b510d2ae875d015966cbadff421ef22e1253309193400387f1d. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/JPV501900392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c16ce7e60a3f0d44a27b1992aadad2d390c7d9193e3dcecc62f142d745df58. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/JPV501900393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecc8ec3636a4bcaacff4c4b6060f9dbc2bafecea912e33321ad0736f0535ef7. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/JPV501900395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c51317f6d8ebc72443d502693fccb474da557c44495fcfb6ae5199e23db9fd. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/JPV501900396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164a13a0c4ff3d1a7570eb6093a49f5ca93f886ed98ec45a8c7b8f5ff14323fb. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T13:52:01Z), 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/JPV501900398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1a15009500afd17f57bf2a6480a11b0583a18229f02ac11b3192b55d726779. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/JPV502100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf759335ff452e9ac2375c23452d919f1af514c56884626452937e9fac03f31b6. 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/JPV502100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be90027020fe36d3b0c3ef9cf93787803537a03d94b61b80004e4677b4fd536. 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/JPV502100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2641302d7fcd239a14062b330f747ff9ed29f27c74f6e87be992b9670294c31d. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/JPV502100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a89f2c5a5849306aaabb97570daf07721e854c7537a7cd7228e0f4b74d2c062. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/JPV502100032.
フランボワーズ・パルフェのために
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13539a2a87ecb62c0d6c32ac101773a74a3927eb7f39d980be10faa21128f1ce. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/JPV502200553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d758b098bc2eae40846a8d3316df01effbd68dcd1b4ee2cc616f8399bccc69. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/JPV502200554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa216c75c7c462b7cbe0aa5dc77b64e95d318598142d449fcd22dfda0a6adf7f0. 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/JPV502200555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98708185ee154f68f616113cb5264a72ca5ce0f2836e7957ea0f924f104f4ade. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/JPV502200557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39375b6146be346aefd8c372319691aca88076c2be849aea09e8c3dc601cde44. 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/JPV502200558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1149f5ccbd10b842b52ae4270167e23cb2a272a20084af9bfc8525eee0be8b5b. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/JPV502200559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56618c8a6580e7f6d9f4afaff8f827aa9c4259879de1e9a3e295ec88efa306ca. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPV502200563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b38d8b9bd552ee7539e3c5021430e064b4ac329ce87656853e8426329c5969. 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/JPV502200564.