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 0x2dca4a06eaaa78f3b3e94d0fc09fa04ca9d97ccddb884ffe0b2cd51d3caca414. 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/d4df41a2-b485-4012-b327-d071ca3fa4d9.json and https://artists.proofprofile.net/proofs/artist/d4df41a2-b485-4012-b327-d071ca3fa4d9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
逃走中 ハンター追跡中『Running One』 run for money ORIGINAL COVER INST.Ver
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 0xa2f1c37b42db242a0f647a9bd840f8772631bf2b3d1ae7a91eb4fc505797353b. 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/JPR861901348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d6d36f9b67676a2b30f06cb4c539b4edca3137fd281549176b4e88b1f2f691. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPR861400139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0595761ab051f8bba6b0fe415837488697886335765c440eadb4f2c064182482. 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/JPR861400120.
すべてを投げ捨てて…そうだ！旅に出よう Part2 ORIGINAL COVER Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c01168698c850917b2ebe3a2b72f85e1d6ebbd5b1e85317d49f36bbcdb3e1a0. 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/JPR861800892.
AMBITIOUS JAPAN! JR東海 ORIGINAL COVER INST.Ver
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa7bf9f1fe89547ddefad8b462ce5165b8cf42a48a01a432a776f5f62d564e1. 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/JPR861801143.
40代ファンが選んだSLAM DUNK名曲集 ORIGINAL COVER Ver.
運動会といえばコレ！テッパン曲コレクション ORIGINAL COVER Ver.
気分爽快！心をうるおすソフトドリンクCM曲集 ORIGINAL COVER Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d30c2ebeb1ee7b0a8546e69d4eb71edb47846e5b2e927cd8e2e3bbd3d63f584. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/JPR861800986.
ミッション！ 健・康・第・イチ はたらく細胞 ORIGINAL COVER INST.Ver
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d0833a78beaa1c0afb798073130026166db557b03737621024c6785bcf12a5. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/JPR861801121.
バラエティ好きが選んだ番組でよく使われるサントラ Part1 ORIGINAL COVER Ver.
ドリフの大爆笑オープニングテーマ ORIGINALCOVER INST Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbc43b22008311ff174d02c8bb49850bf5bd5c7ed052c1508636ceedf2a229f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPR862302757.
スナックのママが耳にタコができるほど聴きすぎたカラオケシリーズ ORIGINAL COVER INST Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c62c314e40085ba8fc0362cdd197b6abc22753b434a90009e96c536d4fe0d0a. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/JPR861901149.
コーヒー一杯分のブレイクタイムCM曲集 ORIGINAL COVER INST Ver.
すべてを投げ捨てて…そうだ！旅に出よう Part1 ORIGINAL COVER Ver.
JET STREAMのテーマ Mr.Lonely ORIGINALCOVER INST Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b542d1542a987676769cc906ce58314862cf7272bdf22592e67c7e47da62b57. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/JPR862402719.
Another Sky 航空会社 搭乗音楽 ORIGINAL COVER INST Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31b357f93c3b3e97a694fbe225d3b7a6d4957a059ec96a36584b4a54c061480. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/JPR862302687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf71df4c8cf51ee60119643ff6d560d380d2d54ace8476dc44e4dd3867fbffa. 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/JPR861700715.
世界の車窓から（オリジナルカバー）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecede9753bf8eefe6fa664344da0bcbb5088a563fca05ea5291acf8b76c90be3. 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/JPR861300092.
お家居酒屋開店！一人呑み専用サントラ Part1 ORIGINAL COVER INST Ver.
【現役ママが選ぶ】子どもが泣き止むメロディー♪ ORIGINAL COVER INST Ver.
保育園・幼稚園で子どもがノリノリになる曲集 ORIGINAL COVER INST Ver.
令和 小学生向け★J-POP集 Vol.2 ORIGINAL COVER INST Ver.
令和 小学生向け★J-POP集 Vol.1 ORIGINAL COVER INST Ver.
鍋奉行「魔入りました！入間くん」ORIGINAL COVER INST Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2ed903b552c4573712147fffb0aa854ea8a01912df41e808dc7096db4bb586. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/JPR862302547.
【倍速】2022年アニソンカラオケ人気曲 ORIGINAL COVER TIME-SPEED Ver.
【ヒーリング】夜行ポップス ー ロックバンド編 ー ORIGINAL COVER HEALING Ver.
耳に残る懐かしいアニソン10選！ ORIGINAL COVER INST Ver.
【ヒーリング】midnight chill original cover healing ver.
【倍速】人気ドラマ選手権 ORIGINAL COVER TIME-SPEED Ver.
【ヒーリング】2022 SUMMER TUNE ORIGINAL COVER HEALING Ver.
#頭から離れない！ SNSで「今」話題の曲 ORIGINAL COVER INST Ver.
国民的アニメサントラ図鑑 Vol.2 ORIGINAL COVER INST Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6841f9382d64a4da532f680989182244b8277b283e0197655928806b4dc3465. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/JPR861400129.
国民的アニメサントラ図鑑 Vol.1 ORIGINAL COVER INST Ver.
こちら葛飾区亀有公園前派出所 「葛飾ラプソディー 」ORIGINAL COVER INST Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d048b35f1eb5b081f03bf528bc135dbfdb3e480789605562b343e94697827a1. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/JPR861800880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd97f2eeaea048f23c99a1d7ae6bfb1c737e54ae1e7bec05b94d47268c620f5f. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/JPR861500210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bf7bfe9835f41bdfaa71788feb4501de7a3ca9b29f75d75b06c57bdee540ca. 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/JPR861800969.
【倍速】秋のイベントにオススメ！大人気BGM集 ORIGINAL COVER TIME-SPEED Ver.
【倍速】タイトルに「色」が入るソングセレクション original cover time-speed ver.
【倍速】KAWAII MUSIC Vol.2 ORIGINAL COVER TIME SPEED Ver.
料理の鉄人 BACKDRAFT ORIGINAL COVER INST Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38bd1763ee06b80a3fa64080d336f3d5e8d1fa54123a85eb1c92cf80f07f70d0. 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/JPR861400166.
フンフンフン♪だよ らき☆すた 「らららコッペパン」 ORIGINAL COVER INST Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed4cc1f1eb3873b97a2c11d41c3c7c227cc9be3091857a2dfc2b49e4e97b95c. 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/JPR861600398.
後味スッキリ！ドリンクCMソング ORIGINAL COVER INST Ver.
伊右衛門CMソング Oriental wind ORIGINAL COVER INST Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f64f81f3f64e4f48f00970fff95f0b73f143da5bdf3dc38cccf6a6599ca87cd. 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/JPR861600467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d30c2ebeb1ee7b0a8546e69d4eb71edb47846e5b2e927cd8e2e3bbd3d63f584. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/JPR861800986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27529e82e895e083369da545bb5e4750f1e258beb20e9440c0c0c57976225b82. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/JPR861400156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0307645a7897f0c9ed0cbe00d44b33336ad06ad6bd8fa8205334727d15f05c06. 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/JPR861500300.
【倍速！】朝の準備中に聴きたい！「ドラマソング」 ORIGINAL COVER TIME-SPEED Ver.
【倍速！】あつまれ！どうぶつのテーマ曲 ORIGINAL COVER TIME-SPEED Ver.
ほんとにあった怖い話 オープニングテーマORIGINAL COVER INST Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31bd2b54ea6176da2b90de7f5417e6af6de7e1b6c96abeede6e08eecb8836a7e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPR861400137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bb526c34c896e69f27e86dfa368e9adb4b201072291a7a2e62bf0b9a56978f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPR861500330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51786550fd21c76183139f2c9083accf7a29f74ece5e636fa97419b72ba113ae. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/JPR861500338.
ヒット曲巡り！昭和・平成・令和 ORIGINAL COVER INST Ver.
カラオケにオススメ オフボーカル2022 ORIGINAL COVER OFF VOCAL Ver.
悪魔の子 アニメ『進撃の巨人The Final Season Part2』ORIGINAL COVER OFF VOCAL Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0eeb6add1c83b8c26860822cfe42155d7eaf66e3a2ad3f86d868ccd2b67ef3. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/JPR862102205.