was a Japanese jazz pianist and composer. Life and career Imada was born in Tokyo on 21 March 1932. He had classical piano lessons. He played jazz in student bands while a student at Meiji Universit
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 0x5c30f0509d6ddafb60674ced642fe7aa7ec6eba0db22d17952434833879a3dcf. 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/72550cdd-ff6b-4879-aef7-4aae521d0a31.json and https://artists.proofprofile.net/proofs/artist/72550cdd-ff6b-4879-aef7-4aae521d0a31.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 0xc6024ab6666e1a980fed7596054c9a15cc96b822c7740027103888b8e4eddc0f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/JPG920700723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8618f9cf74f6721cba83b4a3263e27c348c3e6d1bd97997decfd8d35f77b7afb. 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/JPG920700729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae086f5857d79b020f0340152be16a898c5b412aa13f371dce932a4bdf484dce. 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/JPG920700744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd3df9e6e5d27cbb0be852990f0fbb3aa730397f71cba334e2297ac4f4a6bde. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:30:31Z), 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/JPG920700758.
ソングス・オン・マイ・マインド
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b4fee3473a698ee72bb2d1b780886ecd791aeeda57788a5394d9346c4e9411. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:32:27Z), 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/JPG920700737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d070f55edca5936e100dd54978c232c4ced0cd740931fac627080417ca5738. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/JPS801600421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556aa3950f24550f06851a956318f2369bbfdc89adf839b5a41ce812c4a4c61f. 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/JPS801600425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc849bc620dbf1fe57a992b342dc123a9eb902d65811c66d64e6ca97debe441b2. 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/JPS801942280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4053b1056361e95b842291ed27ff60faec08d79aa4ad69a1d5b42964692f3bf. 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/JPS801942282.