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 0xd3a05f34753d1e7b98a790a61b44dba5618c0883e1b5622b30d06b6e46d45763. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e67bae39-5fe7-48b4-813b-2feedf477161.json and https://artists.proofprofile.net/proofs/artist/e67bae39-5fe7-48b4-813b-2feedf477161.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sing-a-Long with Santa Claus "Christmas"
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 0x7e0163e1f5f7350d025ac0f1ccbcea730e6702304cabfaafe1f1e99186527b2a. 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/JPCO00529740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd211823b11d7118f61a12fb98e7d74cb136fea1b5be66c376d4d788e1fe29f0c. 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/JPCO00025920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8873eb2a9115997919a95ed5ffab9d57327cd004cd2a460e246552b555479ef5. 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/JPCO00723020.
飛べない鳥 加羽沢美濃 クラシカル・コンポジションズ
人生のメリーゴーランド〜「ハウルの動く城」より
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8108258afbec01821efd8a21c31b8f422068f9cd644c274ae3f41d5717c3235b. 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/JPCO00531120.
ピアノ・ピュア / メモリー・オブ・2003
祈り 〜加羽沢美濃オーケストラ作品集〜
ピアノ・ピュア / メモリー・オブ・2002
ピアノ・ピュア / メモリー・オブ・2001
ちゅらさんメドレー 太陽との約束〜ちゅらさん応援歌〜The Pain of Growth〜Pure・えりい〜Love Theme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48f21f93718f2d742669ff4562ea3e3a285636d1a1f2fcdf75eb5f626ef6eaf. 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/JPCO00134450.
ピアノ・ピュア / メモリー・オブ・2000
ピアノ・クラシック・ファンタジー
花のワルツ〜バレエ「くるみ割り人形」より
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7375a510e1446603986b1986f942b9de6d4677dcc529cf1241e5f9a65ffc9be6. 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/JPCO00012880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ae9e83e1b4d820165f0c7713b63d1e08dd9a49b67ddbbb46d28628b1faaf68. 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/JPCO00012950.
ピアノ・ピュア / メモリー・オブ・1999
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b980ace61ad6cd9fa28576d75038b1a740aa358f7df2146e14d082a6e6953b. 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/JPCO09935520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565838a4fb9f5de6b03bccf18eec9e22ef04380fb5d0955fa0c8fe5cd2b16606. 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/JPCO09935550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86d04b91f3e9fd621d1e5242621edbb85caa2a0018f07d0ffaec2463bfc93ce. 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/JPCO09935560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b3c55e764053609b2431d69844b50743f53c96e707dd756ccbe0ed2e97048e. 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/JPCO09935590.
ピアノ・ピュア / メモリー・オブ・1998
ピアノ・ピュア / MINO meets フォーク&ニューミュージック
ピアノ・ピュア / メモリー・オブ・1997
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665134b348c4b454528fe5afe068e977b6cd2d11d59f0f01ff4d36e0e610e333. 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/JPCO09752050.
Ponyo on the Cliff by the Sea: Celesta (from "Ponyo on the Cliff by the Sea")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd15812c53e3816b02c1427b06fb6c06de3122ae100831b46c120d0440a24f7. 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/JPCO00830160.
The Path of Wind (from "My Neighbor Totoro")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce0b1a55b04c35533d8d8e1913a2609a493423e31bc111530725367d4dc677f. 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/JPCO00039440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbb07bd68641c1493ee8db2b5e297de55a6f6b7fa752b46b777a34b49254924. 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/JPCO00039540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18047a59bde2c16a5de7723ecac2fb76188b545d1a928861e66bed76d6606b65. 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/JPCO00830170.
Country Road (from "Whisper of the Heart")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5767a908cf6251bd28321c2fd5ff0c847756a8687388e26eec5a085433eb5722. 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/JPCO00830280.
5 Melodies from "Nausicaä of the Valley of the Wind": I. Legend of the Wind
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b28b00d8bafe40c30edb80f118476a156246237dc6875577c8753f1a291c7ba. 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/JPCO08837650.
5 Melodies from "Nausicaä of the Valley of the Wind": III. Requiem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d49c62313e32a00d4d0083a844432fb08614cbdacf6ffaf49afdfb9f00982db. 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/JPCO08837670.
The Merry-Go-Round of Life (from "Howl's Moving Castle")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8108258afbec01821efd8a21c31b8f422068f9cd644c274ae3f41d5717c3235b. 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/JPCO00531120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf7de30e1ba4b3350721a7cebcccddfdac579b358b2da925cab7b7f51c39705. 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/JPCO00039490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec90498722632e40fc4233318a0ca80fd55d051e4ab7a392e89a3bc9a8c894fa. Chain 2 (Bitcoin): anchored in block 957034 (2026-07-07T11:52:37Z), 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/JPCO09763210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1688d5b5f02ec4a5ebecd291eb49bbb9912534e4a2198d8662e56fc554c6cef8. 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/JPCO09763250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde412591a97cb1fedad26fd5f3a047002b6ecb0048ca2662771cdf521f37e3c. 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/JPCO09763260.
高嶋ちさ子クラシカル・セレクション
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadad85ff31556971c65c90d1d114c95a68de374d2d5d2385e79725fb3b30a038. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/JPCO00319050.
私を泣かせてください〜オペラ｢リナルド｣より
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59272de91c6692ff58ccb33bf6bd2f85324d19f6e025989dd34da9e81c4ec4d7. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-21T20:16:27Z), 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/JPCO00318990.
オペラ「カヴァレリア・ルスティカーナ」より“間奏曲”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e394d2c945b82f51a8edb9fb0f9157f6572e002360289f460f17b4c8816ca3. 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/JPCO00119950.
Departure (from "Kiki's Delivery Service")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6951233cea3a3b13bcc0d28aa8bd823c4861e3ac8d07fd6d5e002ffdabef1bf7. 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/JPCO00039510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f564931cdc08389ad66b854ce346de2baf500244d035c9f3e4e9419668a78b. 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/JPCO00910360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fae04f1b220391018bdd42a2a22e80e20c65686724b12d65a7ee7b301c54101. 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/JPCO00039550.