Itto is a 1934 French drama film directed by Jean Benoît-Lévy and Marie Epstein and starring Simone Berriau, Simone Bourday and Hubert Prélier.Slavin p.92Kennedy-Karpat p.9 It was shot on location in
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 0x13ea95a4b335e1f94a6bda23d0348f69ac63905ef30d6a3095f240e855a2e178. 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/c30fcbd3-8110-44d1-bd42-e64f7d44ac62.json and https://artists.proofprofile.net/proofs/artist/c30fcbd3-8110-44d1-bd42-e64f7d44ac62.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ありきたりなストーリー feat. ゆり花, WATT a.k.a. ヨッテルブッテル
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 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 0xdd3a964f94e7e9dc105aecd3bc237829a7c521fc271e1e893cbc8bd4f076ff5c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPS809904674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7651737468396df44967ee53f2bbc1e0307a267971882946d8fffe9ea28a22. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPS809904683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe249f68719d7aeea5ef994b3c423443f406e8f6412141b4044504d2036daaf09. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/JPS809919485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753658218bba4a4a88d545d45e63741210f50dab22efc41f692780051a0bdf01. 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/JPS809919486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3edf9673e1005125c69db2e6c492dd094f56a97a542f7d190c3c5b65eed2eb. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/JPS809919487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddad6b303147c06ddf789848982d583aa5850faf58e47206e2ffa81b153f3b4. 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/JPS809919488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f3c209dbaeb63d4ff305b187663622eee0cb60c4353f73db9a6d285e1be11e. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/JPS809919489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57cbb347058afbb3746786f0db48a7c2eb67b93f98d2d24dbef2fcd5eac2e39e. 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/JPS809919490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180399b3157396d515f65e1cfc67ac1173d659f303d2d2410d3c31d468bad534. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/JPS809919491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a7e6745b83e8131715dd67ece64718cbda619f87ed8b374d098a5e9a9ee5cd. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/JPS809919493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1098d5e7dc48936381decc90a2d6241ad3eff742b71834a02cf43d868c490f06. 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/JPS809919495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5767786163cd889075e9459a79bc43ad3b0719184f88cf7b94eb36b5fc6e6245. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/JPS801954692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ff45a92e36d00d802c666b6bd528ff8eb43a17eb105929aa8f6a895e551ef3. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/JPS801962068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd2d426e564432f4cfdef66bac486cc6589f2eedaac59288692c67acded40dc. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/JPS801964181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed60970fd3dc4fdd5bf159ad01959f7855f00119f7ed9a2de0febdc7085edfba. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPS802351467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7144bd928caeba4e8dc81acbcf728f4dcad2e71a7e2f415a118f4ae4dcaffb. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/JPS802351796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365604f21c97b7c7ce49e9eb5e055232301646e6cf2a409d009b58364d027960. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/JPS802356029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673cab6590d29a39fb8f101f8b4fb42658d82f69c63caeb3b480bf3fb17d8932. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/JP92J2500880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3535c5296d27b1a775ab0b06bf8f883e0b4e106f149f6aba5f260aead61bb6. 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/JP92J2500888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311e20c462e37c96a00f6c2369891d285396853e6b81aee5b44f651b677a587b. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/JP92J2500879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673cab6590d29a39fb8f101f8b4fb42658d82f69c63caeb3b480bf3fb17d8932. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/JP92J2500880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ccc68dad93900bc2e96804d4675b8fbf95b2fcebd7c962551fcd784a8536e9. 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/JP92J2500881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be00e22a609fc0273244adadc5022687496af7c35bb35efd76e9520bed3aa16. 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/JP92J2500883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365604f21c97b7c7ce49e9eb5e055232301646e6cf2a409d009b58364d027960. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/JPS802356029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3535c5296d27b1a775ab0b06bf8f883e0b4e106f149f6aba5f260aead61bb6. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/JP92J2500888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca876983ddc404b2873289d80023d4842ff97fa0a90387adde284c56498cd6f. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/JPS809900235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aee192d0415c87cbe490ae7cc33d700cf95300a02be5f8e38db0146d3474e05. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/JPS801837977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21dc814c6180f721ba315e23c0e1aefa96bfa8feeb42844fb41b419dbf67b39b. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/JPS801958992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92acdc782297c80ea5e4e6c7386cbfad7d495a9e7140daf0a7f578325bc9332d. 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/JPS801837808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bec3b17dd9196dab85cf07788e824ac4bfa34945724b49aa5dd34c18367fbd. 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/JPS801839543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7144bd928caeba4e8dc81acbcf728f4dcad2e71a7e2f415a118f4ae4dcaffb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPS802351796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24825a1b9228a33f9d1ef2d76417feb9b82f313b5dec16cc044c368ee8a37130. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/JPS809911047.