Akira Miyoshi (三善 晃; January 10, 1933 – 4 October 2013) was a Japanese composer. Biography Miyoshi was born in Suginami, Tokyo. He was a child prodigy on the piano, studying with Kozaburo Hirai and T
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 0xa523ff37eb36cf4434b0b11a64532e17197b17014b2fe1c20f7f4a1f0bab25d6. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fbb9557e-7094-4b96-9d82-ac2c0b6f148d.json and https://artists.proofprofile.net/proofs/artist/fbb9557e-7094-4b96-9d82-ac2c0b6f148d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
2台ピアノのためのソナタ ニ長調 K. 448: Allegro con spirito
瀬尾久仁 & 加藤真一郎 ピアノデュオ
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 0xec33d9aaf146f3bd3a82d821cfa06a7ee2a707cad9769e5b258a36e7b45673e4. 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/JPH291775906.
真島俊夫： 三つのジャポニスム I. 鶴が舞う
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e56ba2ba5483c28135d22f2604dfaff2a677d907d7803cc1d3d359e3d0d9518. 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/FR3KD1505182.
ブリュッセル・レクイエム／B・アッペルモント 土気シビックウインドオーケストラ Vol.22
土気シビックウインドオーケストラ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad19ea0dc6e093f5caadc821c37e328881b62b1661821170c0318985f206b9a. 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/JPJ671811003.
Landscapes. Takemitsu, Hosokowa & Nishimura
Yashiro: String Quartet: I. Adagio ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e95b9e41a92e776e1c4f1dbe4f860a4ab11dfd1680823f866159836aa83ebd3. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/DEA809945201.
Nishimura: String Quartet No. 2 "Pulses of Light": Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ecaa7bb6dc403a1a1eec97b158ea1463236c5587f6065361465d87485efbc4. 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/DEA809945301.
Hosokawa: Landscape I, for String Quartet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6246bf9a69f2d3e37524fb1014ef04b6eca23cdacd9b214033578d3cd8861f. 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/DEA809945400.
Miyoshi: String Quartet No. 3 "Constellation in Black"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eecf8951d4537c4c98888bd1c447532a8921a1448302f686693f91102c58d14. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEA809945600.
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
Miki / Takemitsu / Nishimura: Japanese Percussion Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeaa6edb1d9224c19af585cf3e678ef1683c8f3ada13244090c04957bf8d6176. 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/SEAEE8962010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83332555133a6fee226954cd09c92aa9dfd7a894fd5ccfc940c30e3a7ac3863f. 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/SEAEE8962050.
吹奏楽燦選 / シンフォニア・ノビリッシマ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247d47d29f4da78f59f03114e9aa31bd622630170431733435407a1d35491c49. 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/JPCO02008190.
吹奏楽のための 《クロス・バイ マーチ》
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ec321f0d5acbbc5dde5b4c69808b20e2fcaa71d6541ab08adbd7009c62c7d9. 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/JPCO02008250.
セント・アンソニー・ヴァリエーションズ (原典版)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7f8f53db02a4cc242fb22aa1ef99f88c0bda66bf93ba5534122ee7bc3d8acc. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPCO02008270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75bfe773f9a05b229af35f571ca4036a7ba942abeb0398ccebfd9275d8c6ac3c. 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/JPCO02008280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33e38e1732e2ecb9662904989340fc9ddd77c6cfb80745b1df9b474aa60134b. 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/JPCO02008290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a301021d4b6ccce782c748a7ac9a2a94775773d4863c1abb1c254f71a4fed1. 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/JPCO02008300.
2003 WASBE Jönköping, Sweden: Kanagawa University Symphonic Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ab1c2b5d8139d3067d580fd15c90ae7b79098596d0921d9ba3c32b42812d2a. 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/JPU631609078.
栗山文昭の芸術３ かなしみについて 三善晃作品集
こんなときに －ピアノでえがくメルヘン－
12 Songs for Guitar: No. 7, A Song of Early Spring (Arr. T. Takemitsu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cd3cf4273cf6d1d49acca7d7c324b1ed10ef94432bf948fde58762a36bcaf6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HKI191515301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d24108fc6e3d8e6de95ee719514c3bb3aabef6a3aae5b97715180838e0fccc. 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/HKI191515304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22afafb100066df05363990796b4990f78fba28613028f234970426f53977ada. 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/HKI191515310.
2 Japanese Folk Songs for Guitar: No. 2, Lullaby
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570974178cab24ade0a3ed84b7347dd1560ece73afe01cbe0638e53c0056d4c8. 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/HKI191515313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8ddf54d0fb26fef84c239aef65d14519b8cedc34fecd99cc8a13962b767601. 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/HKI191515305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7782757d2c1cd3c962356db63c4ca1ac5dbb565c4aaf88f9af22b6285f4e7004. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/HKI191515308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97e60389fa36626efb3b2be12cb435d497972b7890a28abccf37cc603c8f0d9. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/SEAEH9566020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246a89cc2385f3d0a0279dbb5b6ca411f76eef1fb612b8c3055c682efa4b9969. 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/SEAEH9566050.
VIVA! MUSICA こどもたちに音楽の花束を ~A Bouquet of Music for Children~ Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15d3bcb981078df93a4e3614d30ba3a0615ce3c5905ee2b3870a7c7d76bfd36. 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/JPH492201064.
Light Colored Album for Piano (Japanese Contemporary Pieces)
Cantus Animae: The 22nd Concert "Have You Heard This Song?" (Live)
Danse lente: Chamber Music for Flute & Harp
Akira Miyoshi & Takatomi Nobunaga: Choral Works
From Afar: Contemporary Japanese Piano Music