is a Japanese digital artist, video game developer, photographer, and composer. His first work was the ambient music album, Objectless (1983). His first work in the video game industry was Eastern Mi
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 0xa599e7c4b265678d3fa50639023e9efe4ef92a2564dfdddebdc1d41cf1cf8674. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f178743d-fc9c-4549-9e05-79b4ab3d42f3.json and https://artists.proofprofile.net/proofs/artist/f178743d-fc9c-4549-9e05-79b4ab3d42f3.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e02b1b055b06e51e584eb1832e4360fe4613c54c57d08fe2e180232b8bd5774. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPB531700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9673cc207fe85c556960b75d5cbaaa24cb0e9a4c11e84eb87dd4de804fd5d487. 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/JPB531800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3117764b10f85cbc9839d1ace70854f88e0efb328c7418c7b1af845b74a3b7f. 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/JPB531800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b7cce55ce53eceb46f0b21c214db2c83572100cf90e124ce6fc35a2ee03804. 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/JPB531800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbe2c35dc8b4d36ec32bbba2927b786747a9727102a41ad11e801e579a6f261. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPB531800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671023d043184ce596534ff20195f9b0ac90bcc1678cbce09133b514c6f5936e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPB531800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d1a91f94bdd21f43a48dc44186ec4e1760f14acc1f97eda5188237b6b2847d. 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/JPB531800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fcf270cf581ef0265a548744479d0666c773a1e000583143b89fe151b95b90a. 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/JPB531800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ac6da48bcb4b737f279eb5329adfe2d21732dce22847578a5c125dbb6d1492. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPB531800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a2d5389c0e487a27fc63497047904d55a355fdaccedcaf251202608e12f2e5. 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/JPS802000324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ce60613f6f53de1a66bdb36cdefdf9d66c5304feb6190a27e8d9702c3cde35. 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/JPS802000325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02202211f568522f25eb4e4741baf47160820357660e2f5520c2f399180d7d28. 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/JPS802000326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8354f13cd305aa114f4a531b593dde69cdbc3856f5d2df4390579c38586507ec. 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/JPS802000327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721b703f0e4f636d0456fc113d30d289106d40f482bd530507a319774d1e5f69. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/JPS802000321.
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 0x3d084b680d1649a3097ef12878f9db1454ffa265a4f89f9046258191e4d31a4c. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/JPS802000322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a616ee5ff58490ea75bb81e15d4bf256be2b05a4e58a40ebd9727a9a9750c1. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/JPS802000323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8898e04f86f3631f5b954a6749303248f4ccd139dfbdc18555fc305ae385c856. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/JPS802000328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb8dcf250f3c78bb6dc87f8e66aefe8d44d09a3123c892a36e075e7347ea9f0. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPS802000329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17787bd328fc201c1332d4cbf91af62dca0a087d9ddb1f0f133e81b743786a2f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPS802000331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1e4bc5f5d0a1c201679de58d53f20c5a319fd0055e461d1eab26ad6e0887eb. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/JPS802000332.