{"copyright_id":"0xcd236f5e68fcece76fd7f4cb5ecc90516365093003f8e4dc375bacb13a78fd0b","name":"Kazumasa Watanabe","registered_at":"2026-06-12T11:33:51Z","symbol":"NIM0285242","token_address":"0xf76b35b6dfd996eb3d844ddc2968ea8feeb51e9d","type":"artist","uuid":"dcd3eaa0-cb74-48ff-b426-2a7e9fedf441"}
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 0xcd236f5e68fcece76fd7f4cb5ecc90516365093003f8e4dc375bacb13a78fd0b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dcd3eaa0-cb74-48ff-b426-2a7e9fedf441.json and https://artists.proofprofile.net/proofs/artist/dcd3eaa0-cb74-48ff-b426-2a7e9fedf441.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
オーウェン・リード: 交響曲「メキシコの祭り」 III. カーニヴァル
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 0x96e3f22f90c612ae34ba73190c80593abcc3571907247c5c23d47bb9eb98dea0. 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/JPH291464812.
ドクター・コッペリウス: 第3楽章 宇宙へ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece11ff8950c8049aecfdb3919002c9c1253d7ccd2af8e5d4ca93f4e4ae1b21f. 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/JPCO01703960.
ドクター・コッペリウス: 第5楽章 嘆きの歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89f83aad5d95ff889db4db19929559795d0d7302b564179f4a900099f47db98. 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/JPCO01703980.
ドクター・コッペリウス: 第6楽章 時の終わり
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03154ba304aa43b850f03dd8a5120f068addadda6fa8cf35a01b176bc82ce92d. 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/JPCO01703990.
ドクター・コッペリウス: 第7楽章 日の出
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d731ed1765d58d5c43d03aeee11001234479b1a815ca043bc57f4f75f83e9f7. 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/JPCO01704000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c369d21e9d4b223e17c37e449be14442783043afa8a8906dd7e4aeedd5a2e46. 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/JPCO01202090.
アルメニアン・ダンス パート1(メドレー)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75298ebf29256146196bb32d4b4fa8ae867106d3e9243bfd456a3e2c0701006. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/JPCO01333310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4558addeda25d0a36c65ed9db154bfe6356d311fa498873f0e1e10ef49b7a7e4. 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/JPCO01428780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247d47d29f4da78f59f03114e9aa31bd622630170431733435407a1d35491c49. 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/JPCO02008190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56662bb9fe4589bbe3b03031ba15f4af7a783a8ca7ce36779d2d64839676c9ce. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPCO01202150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ebfa893d5f744c97d0207fa145ee2d154dc72f1801f91f4e7e04b09a619b7b. 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/JPCO01428880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0cd83985d3e3db9c12396fec64ee64479033595d154f3605164674556919913. 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/JPCO01202120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a301021d4b6ccce782c748a7ac9a2a94775773d4863c1abb1c254f71a4fed1. 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/JPCO02008300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162ae921d342da0d667f5121c158ae6ef04602203b2ae28c45714872f9403425. 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/JPCO01202190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c369d21e9d4b223e17c37e449be14442783043afa8a8906dd7e4aeedd5a2e46. 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/JPCO01202090.
アルメニアン・ダンス パート1 - メドレー
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75298ebf29256146196bb32d4b4fa8ae867106d3e9243bfd456a3e2c0701006. 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/JPCO01333310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924de0fe89b1e4331d80cf4067dcc851455e38aab8a114399c6060757c19c8e2. 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/JPCO01428800.
フェスティヴァル・ヴァリエーションズ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820cbc1bc2db0704fa8d77e976056293fec34016e60e49046de791ba573f781d. 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/JPCO01202130.
ジェイムズ・スウェアリンジェン
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe454fa600bbd4bbba52f6c132652b2a940ca0f8d3dd985a59c3d8d7c1e3f3901. 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/JPCO08900110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75bfe773f9a05b229af35f571ca4036a7ba942abeb0398ccebfd9275d8c6ac3c. 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/JPCO02008280.
東北地方の民謡によるコラージュ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4649b538e8a68cece779469fe4c3b0fc5bca4ed42d9f63a92f4196a1c26603c. 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/JPCO01202160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ebfa893d5f744c97d0207fa145ee2d154dc72f1801f91f4e7e04b09a619b7b. 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/JPCO01428880.
マゼランの未知なる大陸への挑戦
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76865040fdebaf54ac2227686c20566f56629a877c702c111e64a6492d33b2d0. 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/JPCO01428810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d3b8f4c821d7acf69cfe5d33f4b2f5a8640f2559d2f1848df9e2bf446d4aa1. 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/JPCO01415600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b529a40e84961de3ae80e1cbdff532f134f9166ba7baf3a39a079960b194fce. 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/JPCO01428820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4558addeda25d0a36c65ed9db154bfe6356d311fa498873f0e1e10ef49b7a7e4. 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/JPCO01428780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33e38e1732e2ecb9662904989340fc9ddd77c6cfb80745b1df9b474aa60134b. 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/JPCO02008290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a301021d4b6ccce782c748a7ac9a2a94775773d4863c1abb1c254f71a4fed1. 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/JPCO02008300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162ae921d342da0d667f5121c158ae6ef04602203b2ae28c45714872f9403425. 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/JPCO01202190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0cd83985d3e3db9c12396fec64ee64479033595d154f3605164674556919913. 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/JPCO01202120.
Rising Planet: Tomita's Greatest Works of Space Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16606136205318c30f6abd3e72e340530ece787e2bae137cda8c314e38672437. 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/JPCO01210050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d731ed1765d58d5c43d03aeee11001234479b1a815ca043bc57f4f75f83e9f7. 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/JPCO01704000.
Konomichi - This Old Road (Favorite Japanese Melodies by Wind Orchestra Vol.2)
サン＝サーンス:七重奏曲 -トランペット・ニュースタンダード Vol.3-