is a 2009 Japanese animated science fiction film directed by Mamoru Hosoda, produced by Madhouse, and distributed by Warner Bros. Pictures. The film's voice cast includes Ryunosuke Kamiki, Nanami Sak
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 0x13437863ac3bc2fbf33331db50dfce98c6941c2a2fd36b2af893f31f0395efde. 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/28f91c16-c30b-4616-ba3e-1bc2ed349a25.json and https://artists.proofprofile.net/proofs/artist/28f91c16-c30b-4616-ba3e-1bc2ed349a25.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x8837feb95dbd9b8f623b49476b717e2932303668b2edc98fdce4a8c4df0c861c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCADG1716868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce16013cd2f64f7007839c4d0e7273e21bff4e43e167290b5ee9635428fb67e. 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/TCAFG2001288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f8bfefb824d8d09b52bd082b8b530dd5ac5b525cdf40af8172b417cfbf4943. 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/TCAEL1993028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0a7508ee32771c1f531707a702f93e4c56f75d616dd4e4ff0193151f2c2d8a. 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/TCAEA1839199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786a77e7cc71633c99bd64c1d221d6b408daf770ba588c608ccb7698a8021ca0. 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/TCADL1863355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fb87ed51b77583d728e56edf9450210d1a00a32c7cb34296b0c512206af6dd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCADL1863356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40578011c78c2314847190ae0dd35cd2f80af4dbdaf589efeaca31cafb67e866. 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/TCADL1863358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3d7715b4be7fef0176a335d1e925cff71abc52630f8ec5126d146fe3d84d31. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCADL1863359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1753cc10b4b966bc02848a1ec57bf81bc2e3a0d75720551ad97a336ebfbbbed. 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/TCADL1863360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcf4394b22d0983cc7f952bdb200c3dc61e03c93af7f94a07b6eaad28d70676. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCADL1863361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e4ea97ac1d092e63336a4ca445377058372f5898f447f92fa35f31e3d5201f. 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/TCACX1786563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea2783bb7368ef90c7e45501a1a50cfbe2e876ca01d9f2a010cb2e7a0808ff4. 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/TCACX1786566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0b95e2b7aebefb668caff0d9b7b15b3c8d5a7841949511e711b2f79a29d34a. 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/TCACM1640270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a57b36afe1e000e43dc87d6381daf86ac064ff7204db96555cd7d1951bee15. 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/TCACM1640271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64a65e114be2889a8572c47150ce92d3ec94615a5bcca24d488c9f2c90ca8e9. 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/TCACM1640272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecdabf5c1b74b59916d8c1e1b315d9ad9ec4cd2776d0c3feec8381b96a4735ba. 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/TCACM1640273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c92c187e6f37edbeaf185b8ae34f5f3797513143a88783702a61771bac64233. 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/TCADH1714519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa58ceb93300daa18664feae73bbf46871a32eb035b74e942f439cbf5101685. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCADH1714521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32353a6ed99f24d877cd840b3c4117b6f058927c5b84116b86e1bbaff2a5c4fd. 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/TCADH1714523.