is a Japanese musical actor and singer. Ishimaru is signed to Sony Music Entertainment Japan. He grew up in Ichihara, Chiba and graduated from Tokyo University of the Arts. Biography Ishimaru played
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 0xb6572ee44a58b6a80a920b8c98c49b4d300b5590aa8f5c7a6c3d8cff5965df00. 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/9e054546-8be4-4b3b-824a-56cd619b8e37.json and https://artists.proofprofile.net/proofs/artist/9e054546-8be4-4b3b-824a-56cd619b8e37.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
kanji ishimaru - 10th anniversary edition -
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 0x8bdc8cc91b434d00739260b32bdd77261dfea1627027ab09a7b88c4f3ea2301e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPN201100641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf888328248825d848392d88e4bf2a8cfe2cfd1a675d9f817abaae198f372bb9d. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:04:34Z), 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/JPU901503167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb08e50f8f71534ccfa99f7f8d9358096712e36b122cdc060dc29fbafc3ad666. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JPU901503170.
愛してるなんてもう言わないでよ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a9c4a00ef5e5121dc48af81502ba848f2fbdcd048558131378c08c051eb1e6. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPU901703091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9c101743ff377b1bdb531a69b5080507de82ca29fa987839d712644ea8fe10. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/JPU901703094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd2082c0286dc02fe941a28d1c1252c352a391769b4e363ee65e61c896cb8cf. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/JPU901703096.
サンセット大通り（「サンセット大通り」より）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0404981ddb3a34a70447723b99055eb0fb33af62c5f3b4b140601f13c2d714. 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/JPU901703099.
ポイント・オブ・ノー・リターン
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e65477626a00a3b3cb463562cbdac8c9930a1f5ea2e7328041f8e9fbb5332c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPU901703100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985195929281037fdb6446a5ed16d1ed959af1135f155ce2b57cb5aae405a12f. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:35:15Z), 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/JPU901503166.
ラ・マンチャの男（われこそはドン・キホーテ）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7963a1561177884a9db8302ae123d93e57e619c393f204e696332c63aa2b49d. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/JPU901503172.
オール・アイ・アスク・オブ・ユー
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf2d1980ed56b51e49f6183c6cd09b8ed73be92c2486f33d9cc86bf16f92dce. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/JPU901503162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869968dca6d665a964e2e27cf3a6dae8880313ad04d73d33cb61dbddd6687049. 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/JPN201500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32241b2aa33d8346f621ab62f65acfbd3776ca673e73f3a7917f16bcf52a130a. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/JPU901902110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c79842a19a2a117ca885238b6e9617eccb3f950bc48ad806d7ddc59990c4b7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPU902403070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf748ad6c7f427e27877906eaa091b37d3ea182eaf34ae0cc5e81dd489062fd6a. 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/JPU902403072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358bbf9e929b1173b7daeb16b24a164e1e5c6b3c30576ab72192614631177bb5. 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/JPU902403073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864390ff0d8cc5a9c157ced43473c1c5ddf8f31d2b386d0b56e68e601f9d029b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPU902403076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd3b3e8ed2dcef3ad541bfe3200a5909206a370622b4f3da303cf752bc2ffce. 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/JPU902403079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083a1dfbd4181219489903b0a091e22af5b5008e2337741e48185a494a9f9513. 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/JPU902403081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e90409488d63371c77cb8aae17885e81f22fccce244db82a1d4e21ecc4dc4d. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/JPU902403071.
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 0xf98066c2d7029d546beec6f767bb65c650619468efd6e5c628353a5295030194. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/JPU902403074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb49481d1244dd266d3155e06f7406213d32fff8b5c40d3be8dc7a35bc7c6cf2. 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/JPU902403075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8473c6eaac1e18cf54c2ed35a59bfd08cd5c8fac89cff1873cd793a64ece3477. 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/JPU902403077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee691db7a6abee7e5d07a65bf52d9cb2d8ea1c54bbfd58d9d029213093ca23b. 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/JPU902403078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a65726f11565e6338f7974441fa419d1dda67dee7c8a579e9ebe4ad55fb5198. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/JPU902403080.
世紀のうた・心のうた -服部良一トリビュート-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24358e042f0bb1929c3c1d1230b7e09a4dffeceb034d086bb22a211ca84c1f66. 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/JPCO02401600.