Hiroshi Sato may refer to: , Japanese singer-songwriter , Japanese curler and curling coach Hiroshi Sato, fictional character from The Legend of Korra
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 0x1d46a2ecb65ed9e69ea2fc232eab94b12176695f7c3ccdeea3564a68a4ba2209. 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/06d25410-0ab7-40fc-86d3-bea7181a9bd7.json and https://artists.proofprofile.net/proofs/artist/06d25410-0ab7-40fc-86d3-bea7181a9bd7.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 0xc2e2e0fe68cd1ec636ac07d682c6b491bcc485727010b396dccfbbe31415c24d. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/JPCO07612330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e2e0fe68cd1ec636ac07d682c6b491bcc485727010b396dccfbbe31415c24d. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/JPCO07612330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfc57bb1ef48e02265869b65336a4b224205813767b921e39d59a4ee56c12c9. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/JPCO07612420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1df6db841850a5c1bb512d1d5e93941648bb2537f00bf6388b2064034adfcf. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/JPCO07612430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500165158a2472ed08a23b447e8fa43afc84350cbc6d7e6b761b772b78d81ad0. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/JPCO07612440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa81eafb4e55b64cf73d785c22f344b10df5d47a90509758e966bc8967d3b9e. 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/JPCO07612460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61780c7a61c2f3325990c00aa86795f6fd6289462abe2d89dadbd40d31227fe. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/JPCO07612470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27551f2e6a94494460ea1a76c39cdcf21b41d3820ae4f604fab85b8b06402de3. 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/JPCO07612490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f97dd716d6dd5c479e4e35f3d5cdb4e96288d919b5b62fea88f49162069eb3. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPCO07612500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51804ce829873507aab879aa9a2b6b587e38823e6a4469d335b9ac7e848c57e2. 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/JPCO07612530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ffaca87356b6b359a9ca8b8378c5bddedff3c4ab20598e172be67f43c7e89a0. 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/JPAL00501260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5a653c9aac222f43ce2f231d9a9cff7da99ff4ca35e21ad2f8d92964fba67c. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/JPAL00501270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e362c0cf525b494fd532db701990e30f2751cc74cad09d44ba64857a813dc9d. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/JPAL00501280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6095276ed2d3081b22a69db1e2eb001f4984c10d02a8ea23815d8193c5cf3939. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/JPAL00501300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3197ff1c6e15134e97af37fca59caeb6b9a2af2cef15f452a7afb64ca205620. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/JPAL00501330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd75ae199cecd06d41048a3ab151cf31be673a4ebf2d27a5fc8bc23878c8749. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/JPAL00501350.
アウェイクニング スペシャル・エディション
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc03991ed08e8330d9d15a83c0ff855df7dbb64b342e75c3566a3bc0989bf9c. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/JPAL01400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb527c03b81131f10bc863fce7b24b8d4c58bd0ea97b980bce488b49e068827e7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPAL01500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb503ec2bfd75f88b2f7e8c8a37277cd50601788fe24fbd801e00d925d3084ee. 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/JPAL01500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d892034bb7fcab2a486ba38fb5a7cc89bce388807892711615cc60a5404256. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/JPAL01500390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d69db574c80c9c359bcdc13791514652525388b268c2572f1530ecfda4196f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/JPAL01500400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2719b66437dfdee40edb0fc9b6e338a2012207e26890f3881faed96d9c283dc6. 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/JPAL01500410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271f2b259b3a7ef90a425cb9ffe48004e18cb801bdb693871edc49642ce7625b. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/JPAL01500430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x341431afbbb20de6ff2c8b2ca3d92a61166c1068ba63cef00df78b5393746236. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/JPAL01500450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1b97f3fad0de2317a9857e361770d4d556226ed0bf2fddcd80aab57cc9df8f. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/USCGJ1084361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd7877047ca0b7b90b7847d6c17f12498cec95ac8d242ba8313d2c6faa72dac. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/JPAL01500380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138dbf499fac8bbd337f32f32627d190be53d9f6e17803ec1ae1d361d94a3bb3. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/JPVI00212130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b87e4345435b92bbe048b6beaedbfb5b2dd28beefef447c25059e810a0626e. 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/JPCO07612340.