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 0xeb18ab4dec50530011a0913cc744a0b4f171f8b5d78ca2e590c1afb28101abbe. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a609813-d153-4e1a-af48-80b2a4cd2c8a.json and https://artists.proofprofile.net/proofs/artist/4a609813-d153-4e1a-af48-80b2a4cd2c8a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
舞踏への小序曲（エリック・サティ）
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 0x4ccf60b4342e80e6256e608505d29c9bd45951cebc314c69e8c00dcc4b8b44b9. 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/JPVI09630540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8d2598e5191594ec06906b080db2b5827e70a4c5b4195de50199cd7f4f9edb. 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/JPVI09630560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0f90c6b8dfca1f6b51bd48ed5f51828b5a482a80091983d5112718ceb57abe. 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/JPVI09630630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5b6392422ada434c20b805aca8a0c8cf2fa793b99fdf5d08c53cbe5f05fd75. 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/JPVI00714690.
ディヴェルティメント K.136～第１楽章（モーツァルト）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8f2f785a19a036e033886a30dc1e5b20bf6f1d7df536132b3f6d8105b30ea7. 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/JPVI00325000.
ディヴェルティメント K.136～第２楽章（モーツァルト）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc868eec2224065786d9240e8822214a18cded46d2d8514bedaf0d86566b79166. 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/JPVI00325010.
アイネ・クライネ・ナハトムジーク～第２楽章（モーツァルト）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03253a0ae50e834e9227cf90dc0311ccdd96cb11830607090cea72139ec73156. 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/JPVI00325040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b70b30fabc829b94259ef76ba4536ea74e90db162985c20340531621e924293. 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/JPVI00535460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07933990fdb880013ff11368d9762bbf6fed0ba22ea9bc421e62b46a835c8825. 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/JPVI00825480.
「マドンナの宝石」間奏曲 第１番（ヴォルフ=フェラーリ）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89baa0b7940b5b59a25062228aab6c7c067586414d8a857eeecc1662d91e241c. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:44:30Z), 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/JPVI09025090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d68355288e4d987838c28d046901bc4e31454993b31f6344ffe3ce972fe9398. 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/JPVI00123290.
アルビノーニのアダージョ（アルビノーニ）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93f3b8573ea4101e35d2801c976dfb849d4c828662f488dde63c02be3a6e0c3. 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/JPVI08810200.
オーボエ協奏曲 ニ短調～アダージョ（マルチェルロ）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e0ad5c77c210da21d12416d1ea39e18cdee47a1657a729c9fedc3c33d8cacf. 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/JPVI08810570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614dbe76a0f09748652d4881a46e3da0a50f585c851a00971f9ee209b1bbea1b. 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/JPVI00908970.
ブランデンブルク協奏曲 第５番～第１楽章（J.S.バッハ）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00bd8f2e870556270f45f879d61c4b46dcdff21322ffe38c0528d4f5e545f177. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/JPVI00825980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81a3bb2702a2aca044d2e956ad08464bc2bf1a33e991bd0b6d647dc626dbb9e. 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/JPVI08605650.
ラデツキー行進曲（J.シュトラウス１世）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14cc56793c3426c800b888b0a76697d719af6ecce214e91536d7cec20b0b9de. 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/JPVI09130410.
交響曲 第７番～第４楽章（ベートーヴェン）
ライプツィヒ・ゲヴァントハウス管弦楽団
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69b602d9917526bd540e4447283ee099207dff07cfe6c2cebe41ecd79bbd846. 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/JPVI07305090.
交響曲 第９番「新世界より」～第２楽章 家路（ドヴォルザーク）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e2e799cb88407976a558e2ae732543b0bfa6eaed7d60e3c16b33978876ccb5. 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/JPVI01002350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8f2f785a19a036e033886a30dc1e5b20bf6f1d7df536132b3f6d8105b30ea7. 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/JPVI00325000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7d5323283b65c60baf9543131218d4f322c06d4e03a620b00f134175f660c2. 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/JPVI01016840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5b6392422ada434c20b805aca8a0c8cf2fa793b99fdf5d08c53cbe5f05fd75. 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/JPVI00714690.
「カヴァレリア・ルスティカーナ」～間奏曲（マスカーニ）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042e2807f7917fabdcc9ca3062a0955e5fa859f0a16e4909a591b4a2880a30a9. 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/JPVI00908960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc202cb2ae41b83dc092233dccca6921239be1565d0f24f0745077d6fe9f715ea. 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/JPVI01016880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46087ac674172cb2ec1e516c2258d35729b498b4067e8820349a7bf7c9ea56c3. 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/JPVI01016900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5c5b6b94052c0cb9b854bf35fca0daa9695ccd2e4cb0ec847042939c0db6d7. 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/JPVI00649780.
弦楽四重奏曲「アメリカ」～第１楽章（ドヴォルザーク）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e6bf477b192f7c022272682b5200ed9b2860f28833ebdf2e7c4eede3b5961f. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/JPVI01017180.
ピアノ五重奏曲「鱒」～第４楽章（シューベルト）
チェコ・ナショナル・クィンテット
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97446461959ba47ba6c72b2a845619b3942373311a735ab6980ffeacc7053d76. 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/JPVI01016920.
ヴォカリーズ（ラフマニノフ／ローズ編）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6de25ec1aefe36d7dd111ecb812e015798bcf66e0915e804a7a8860c0d44c2. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/JPVI09220370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43916d1d711a133549aa64fdcc4f88c674083e9807483327098f578cfcb89d0. 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/JPVI00914980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fadf4fb6c086c7ed5489b19af45c07709dd93effb17b47cd1bbe9a7c9932797. 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/JPVI09124500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9367cbc96262938286b733f8d2645c88d066026e3f68d9fb477f3c8a5678d7. 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/JPVI00226880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bce0cc30cdb42d502954fcd357361d10ee5d6452607d3c6c180d565070d43f0. 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/JPVI08408080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6462b9de4e013777de2e5c52b5958d415b990f29f661c194066d72bd5ab5ca. 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/JPVI00226830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2850284d42a62825a2a70a55b13c8025c170eedcecdc4de1cbfd36837219e855. 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/JPVI00226810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9af7035c6420b867c33fc70bfb4b9938f61ad01c4a9abae8c866b95cba70a8. 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/JPVI08810560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614dbe76a0f09748652d4881a46e3da0a50f585c851a00971f9ee209b1bbea1b. 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/JPVI00908970.
バスタイム・リラクゼーション VOL.1 <波の音編>
もしもピアノが弾けたなら・・・ 弾いてみたい名曲 35
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5de825c82f84ecdd1936cb380a29cdda97fe1b8565d05e9b226ce8751615a0. 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/JPVI01233840.
家庭の食卓を一流レストランに変えるクラシックBGM
お茶の間クラシック 70～TVで聴く名曲［ドラマ、CM、バラエティ、スポーツ等］
バースデー・クラシック～5月生れの人に