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 0xe450d7323334815cd4c3d5dd516709a4e1ed97e61c2774345930d17c18fb3214. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6f767c5d-8301-4022-a481-fc54658b1814.json and https://artists.proofprofile.net/proofs/artist/6f767c5d-8301-4022-a481-fc54658b1814.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
TVアニメ「オーバーロード」&「オーバーロードII」サウンドトラック「OVERLORD ORIGINAL SOUNDTRACK」
MOVIE ”SAGA OF TANYA THE EVIL”ORIGINAL SOUND TRACK
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 0xeac2a3a01b2976aab9347a95b811076d1d84168fa6169da8606b28d657f22319. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/JPD731900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f99deac039f7db677afccf83c19ddfda6fa4cdcfe0aa6c1fc7c01ff943a07b5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPD731900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf178df34d64a66579335b0c1a56f23535b2a7b070f4db0a8ab07f394a7e4917b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/JPD731900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4f2938bffd5bceae83ab42b530b04228bbef3087ab6ac9085ab542917ff31c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPD731900056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2586ae3edcdb593f0c419271c24897d429c6930f1d019ae15df949523ad8bf. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPD731900058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b52adb2f3966c66d7f70585f54b61004dc20b8b488d811f8c6a654bbc18aa8. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:22:46Z), 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/JPD731900060.
「劇場版 幼女戦記」オリジナルサウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c6f938c14aa836a3ef54b4b9573fb31b51352889932e94225f794552590825. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPD731900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28d35ad753149c00a91c08dae98fac70e9d48fb62a665d51ba13939abea1f7f. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/JPD731900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f021121ac308bcc94640bfec56a45ef4b6beaf365990b4b7465f2a2dcd0f4d2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPD731900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac2a3a01b2976aab9347a95b811076d1d84168fa6169da8606b28d657f22319. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPD731900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f99deac039f7db677afccf83c19ddfda6fa4cdcfe0aa6c1fc7c01ff943a07b5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPD731900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1faa7f9a5cdca9d719be1bf71cbc5eba37c9d8aa2a6840be1b99cfbaebaf730a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPD731900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf178df34d64a66579335b0c1a56f23535b2a7b070f4db0a8ab07f394a7e4917b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPD731900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bc417434adab71e313c8669cb1fe4724495432796222b03c918cb5dcc550cc. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPD731900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3c5325010ea29594c5e23d2ea32d89c0f4c549b60762f49f86db20b229fffd. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:28:15Z), 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/JPD731900054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4f2938bffd5bceae83ab42b530b04228bbef3087ab6ac9085ab542917ff31c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPD731900056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2586ae3edcdb593f0c419271c24897d429c6930f1d019ae15df949523ad8bf. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/JPD731900058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b52adb2f3966c66d7f70585f54b61004dc20b8b488d811f8c6a654bbc18aa8. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:19:06Z), 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/JPD731900060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10091d59e25103aed74045a7df5647b345acc00edcc758d99a462f898e61c92. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPD731900062.
TVアニメ「蜘蛛ですが、なにか？」オリジナルサウンドトラック
TVアニメ「蜘蛛ですが、なにか?」オリジナルサウンドトラック
TV SERIES "SO I'M A SPIDER, SO WHAT?" ORIGINAL SOUNDTRACK
劇場アニメーション「シドニアの騎士 あいつむぐほし」サウンドトラック
TV SERIES " SO I'M A SPIDER, SO WHAT?" Original Sound Track 2
TVアニメ「蜘蛛ですが、なにか？」オリジナルサウンドトラック2
BGM FROM ANIMATION SERIES ”GAMERA -REBIRTH-”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3505b87dc3ef5b739975a2bd153afc366b06014488581d80765d6d1351de0d2. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/JPD732301562.
TVアニメ「オーバーロードⅣ」サウンドトラック「OVERLORD ORIGINAL SOUNDTRACK」
TVアニメ「オーバーロードⅢ」サウンドトラック「OVERLORD ORIGINAL SOUNDTRACK」
TV series "OVERLORD Ⅲ"SOUNDTRACK「OVERLORD ORIGINAL SOUNDTRACK」
TV series "OVERLORD IV"SOUNDTRACK「OVERLORD ORIGINAL SOUNDTRACK」
Loner Life in Another World ORIGINAL SOUNDTRACK
TVアニメ『魔法使いの約束』オリジナルサウンドトラック
TV Anime "Promise of wizard" Original Soundtrack
Star Wars: Visions Vol. 3 - The Bird of Paradise (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a94df4bbbe26e50d6635a92ae26d49d2e5dd88e00233540f197ff12ca6e994. 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/JPPC01902427.