Jun Nagao (; born March 1, 1964) is a Japanese composer. Nagao began his career arranging for orchestras and wind ensembles. Today he is known for his many original compositions including several wor
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 0xf47ae32a6b7b2e6a887583aa788caecacb8c502271a933d9e7995c68ea710912. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8751db63-97c3-49e2-a575-9fff1cf90a88.json and https://artists.proofprofile.net/proofs/artist/8751db63-97c3-49e2-a575-9fff1cf90a88.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
真島俊夫： 三つのジャポニスム I. 鶴が舞う
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 0xcdbaca66579be42e29c0ec765fb585c2891b1d6317a603a3ee3fef5487ab13f1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPH291464003.
真島俊夫： 三つのジャポニスム III. 祭り
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e2bc5c2227d0b9a7692d24856954723e72d2c88bef823089ea90be7d405276. 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/JPH291464005.
三善晃： 吹奏楽のための「クロス・バイ マーチ」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028e3a9a8c04051d36d1b1896642f87a15ca5a3fcb33b96b464f0edc56e6777c. 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/JPH291464006.
三枝成彰（長生淳 編曲）： 交響組曲「機動戦士Zガンダム」 II. 戦争と平和
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906f12660f3ff7153ca292bd841a2ffe8754bdf81ea6d74b94437d7f43333040. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPH291464009.
三枝成彰（長生淳 編曲）： 交響組曲「機動戦士Zガンダム」 I. Zガンダムのテーマ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9346b91701d1ae6ca75833dfd4f1c42c7ac34a851e3e3abb162f1f033a9a81ea. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/JPH291464008.
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
Midwest Clinic 2015: North West Wind Symphony (Live)
2015 WASBE San Jose, USA: Showa Wind Symphony (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb562eae0c61f9df53b296263c5e6fd305df9661ac7f848ecd81ce249ffe8570. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPG201215624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b451c45be91d24f87d4a6fb4ac217525785ec0e5d6561fa2b4a71d979f9c14. 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/JPG201215631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0be9c2f9c168232fa9bf13a2a8064b2acb9cdb8847fe87191c00932df39e676. 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/JPG201215639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdffe44e107f406e762346abe52ee3adf0fe02bd44bddeb179fa65cb069b8910e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPG201215645.
喜歌劇「ロシアの皇太子」セレクション（鈴木英史 編曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b8e1a75613c89eb4b51ab48a481efb74d4e433cb57247e18b2f18925d7e89f. 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/JPJ670902503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5a502b7f4fd322d75f18c6c12be0da3b2d697aa2fec98b5a053b0b75446c87. 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/JPJ670902506.
ア・ウィークエンド・イン・ ニューヨーク
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dba47de420a411fb7d1725f15b0f165cb0872f109e2bb1f62ff389f192b0fdd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPJ670902528.
Mahler & Others: Works for Wind Orchestra (Live)
Carpenters Forever (After. B. Bacharach, B. Bramlett, R. Carpenter, F. Karlin, R. Nichols, J. Raposo & L. Russell) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202231a58e1d29201c7a9f22913bd4173694b368427d2aaecca25f4208ee735c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPG600608710.
Japan Air Self-Defense Force Central Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777b958ebb4beeb293219462c167bed0b0ea87f2830f0e62720a71c32c919a3f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPG601014801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc741d1afd5ec01fec76f819725238052b852784345cbd1b56532fc461b3405. 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/JPG601014807.
Japan Maritime Self-Defense Force Tokyo Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d85cf7d0bc9fcf058c1d0e2dd3a8880a9b605e0abab35313ec578dec270453. 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/JPG601320013.
1999 WASBE Cincinnati, USA: Philharmonic Winds OSAKAN
日本の音楽大学撰 東邦音楽大学が奏でるコンクール自由曲集『相授譚／長生 淳』
～サックス・エキスポ！！～ ブリッツ・ブラス～
Columbus State University Trombone Ensemble
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f1904197f96d00a29ba7ada00c86e8b2ab5d65f2dd9154863f0c3d254ad249. 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/US9931301063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97475408f5c1ac6b1b3b9095e0d89eedf245b8b40a64e64cd3fc1eee91e2749f. 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/US9931301065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84fe0cc3032bc4bbbe555cec505c932897535774c2d671088c5a1eb73674706. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US9931301067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf28a53d64070e1b3687a8fdf30bd21ec39c0b818c5540339c8a0115fa17ccb7. 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/US9931301072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb1d9d2b6dccfbc1518cc78607ebf7957874c3b14f9907f5a49a1ef4fb641b8. 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/US9931301075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98588b5ce05ab0ad8a575f3fb141f55462c9af7a2f8018f982044d8eaf37c08e. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/US9931301068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c04f936d83e1debe46c770b1a8e7b67e31d97b18cb5e63ebd1aa33851dcfec. 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/JPTO09810141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664de1e301f1cefaf79d256adbc517e06c512d99f9280cc04fee28f361610515. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPKI01511998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181986be151e363acb69edf55594dd75e4aea4a57192b64e24a697e6ade831f0. 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/JPKI01512005.
Ligeti: 6 Bagatelles - Desenclos: Quatuor - Bozza: Andante et scherzo - Nagao: Quatuor de Saxophones
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603b259cd69bb46d81d149a6e7b90f9730f7e819b924da6ca68a5d529b74d955. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USB8U1701240.
The Saxophone Craze: Homage to Rudy Wiedoeft
Glazunov, Françaix, Nagao: Masterpieces for Saxophone Quartet
2015 Midwest Clinic: Avon High School Brass Choir & Saxophone Ensemble (Live)
2012 Midwest Clinic: Senzoku Gakuen College of Music Blue Tie Wind Ensemble
2018 Texas Music Educators Association (TMEA): Waxahachie High School Wind Ensemble [Live]
Una Voce poco Fa (Opera Paraphrases for 4 Saxophones and Piano)
シンビオシス 長生淳 トランペット協奏曲集