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 0x918e4d4ba6b40de45f016e250aae4c55cb95ae214c9f56dc1d5c93076d850469. 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/a817ab26-0071-48be-814f-0cda4de56a48.json and https://artists.proofprofile.net/proofs/artist/a817ab26-0071-48be-814f-0cda4de56a48.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
700800を踊る我らが26で或る。 (feat. 初音ミク&猫村いろは&結月ゆかり)
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 0x891fe23aff6ee6c71fcca66f18f57f3e653c8a898c63242d1c2c1d5885297885. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/JPE562107458.
今宵は彼奴めを拐し、いざ麗しき闇を燃やさん。 (feat. マクネナナ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f062e861971202725bd8d1b704d6e8be01962db5d1a8940aa8f508cb87af296. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/JPE562107460.
貴様の喉に牙を向け、我が賛嘆を呉れてやる。 (feat. 結月ゆかり)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3a3484fcbdd6afd13860a98e2df9ac5f4edceee8f0989bbafaf0d9ba94ecfd. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/JPE562107465.
うるさすぎるジェラシー (feat. 猫村いろは)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb68908b03ce5e32c33901d689d4106a653569aeb64a6ebf38fd14733ec721c. 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/JPE562107466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cec95d9c88eb8c2471a2911238e850b28348dc5881a4f35dfd9f2ffdb79ec05. 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/JP92Q2200259.
女子中学生、禁断の事情 (feat. SF-A2 開発コード miki&猫村いろは&結月ゆかり)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707961f6983d9cfe69684eb5d10484fc2b6d058e19195350ef1d190a989b1dd5. 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/JP92Q2200555.
13歳声明白書 (feat. SF-A2 開発コード miki&結月ゆかり&猫村いろは)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00d2c2acb3c928c74236a9653082b97882abcea5dda09248d48e41140997e6f. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/JP92Q2200557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838c318e8656c2e30de46fc42fdd47a387d10e69ca34bb53dd1b6753f35d2edc. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/JP92Q2200558.
神様、わたしの性別間違えてます。 (feat. 心華)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f2e092d4b2db2a041cc4d3b4b021320dc21c4508713bd5451fe2f2679fd899. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/JP92Q2200560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175d651d7dedca5b30e55628affaad713ae9f3d20cb4c76a4de639a8d4fdd2d9. 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/JP92Q2302073.
かみさまべにうめをせにさかせたる
女神は世界をダンスホールに変えやがる
女神は世界をダンスホールに変えやがる (feat. 夢ノ結唱 POPY&夢ノ結唱 ROSE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ee4d9896a106d3e6a4f41ebe5f210ebd4c6f78a48f562e096348d1309aebf3. 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/JP92Q2401176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3720d0aa80a17ad6911f42c8b7bd3de85a088d682f7aecf04a99aad91fc6ef7. 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/JP92Q2401202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827fcccf6d065f587a34da2eb3cc2e8ba1d1103f9b91943b7b8fd85b0705926d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JP92Q2401215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3720d0aa80a17ad6911f42c8b7bd3de85a088d682f7aecf04a99aad91fc6ef7. 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/JP92Q2401202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ee4d9896a106d3e6a4f41ebe5f210ebd4c6f78a48f562e096348d1309aebf3. 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/JP92Q2401176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4873dad3749e4d37d999fc338489531e6174853a14fb05aad40d934f750ecb7. 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/JP92Q2401216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed2fc2c39c348106a0c97fbda5e2c389a90530d84db93cd1db833d77143e512. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JP92Q2401217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1089b10894ba116f044fc61063dbe052b05129f2e336acb7b39f3f997fc69d. 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/JP92Q2401218.
情事・色事・ん…こっち（Neo adult style） (feat. GUMI)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c48376718d05127aa8cebe837abf83334f51ed7954d57d5136f8760f30cbee. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JP92Q2401219.
結月ゆかり全裸吹奏楽団'24 (feat. 結月ゆかり)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab45389762287d716b6162708fef34b0ffccba1f6de9c574524cfb451efdb93f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JP92Q2401220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bc18913a107cd4df2ca7b126b929d9cabf8fc80c67c13c4ed199312c61fad7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JP92Q2401221.
ビバ！ショータイム！ (feat. 重音テト&音街ウナ&弦巻マキ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7943d50658abe0e349dbbea7739a9cda62fa1dd2298ce87a4d009d9d18cbbf. 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/JP92Q2401222.
独占欲は多数から100%に向かい、過剰反応を見せる歪んだパラノイア。
Exit Tunes Presents Vocalodelight feat. Hatsune Miku-Digital Edition-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ef4c273ef2f498b6efb4296dcce4d504aaa13d5e5452c0af048aeb71d3276c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPPC02111494.
音楽的同位体 裏命 1st COMPILATION ALBUM パラノーマル (vol.1 残響のパラノーマル)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1acfce5d2af91194de8c50e39a16144e361a2707a3f435a5d173096169ecad67. 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/JPY392200555.
Danso Oyama Hyouriitai Hakkyoukomusume Sasyougiwaku to Kunou to Jonetsu (feat. Fantastic Youth)
Tasogare Relation CHUNITHM Original Sound Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1640ce1de713e2a3a39e3a8637408e22b1cd1d819d1dcaaac44dbd392009fa3. 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/JPX301921430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be1e5278fe0eab4950f623689ff31e1373e07a01abeef6be719b55e77fc12b4. 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/JPY392200660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce40b82f72a916840b16b88a576cedd571ed988718befc8e4ccac6a58b1ac32. 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/JPY392401850.
音楽的同位体 可不(KAFU) COMPILATION ALBUM 喜色のアシンメトリー
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ce5de9da9ef3443dbefc206a1977bc39aa1f2695a449a5f37f24a0e6784b28. 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/JPY392200705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddbd2ad8b637a6cd384bf4cea7380b429ea41d39f142027b4add5276e92dd73. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPY392301010.
初音ミク「マジカルミライ」10th Anniversary OFFICIAL ALBUM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10415ffc6982c6c5a69e0f7157184cf91c4fadc2d33bb49cd21d9f867edfd080. 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/JP92Q2200388.
私の恋はヘルファイア-初音ミク「マジカルミライ」10th Anniversary Live- (feat. MEIKO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433c6ad7a3381058c2c0c8ccf4ee70009b246ee1f88ec1a13fdc6ef3125a6bf1. 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/JP92Q2400662.