is a Japanese singer and actress. She was part of a music trio in 1973, which included Momoe Yamaguchi and Masako Mori. Sakurada then became successful in a solo music career, with 18 top ten singles
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 0x7a497cea8c3422e094f844d29870243247cc9e0d79cc423299da5d17f86a5e64. 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/03d4f2d4-0cc5-4108-ac47-64d521cdeb04.json and https://artists.proofprofile.net/proofs/artist/03d4f2d4-0cc5-4108-ac47-64d521cdeb04.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ビバ！セブンティーン リサイタル2（Live at 文京公会堂 1975/10/26）
青春讃歌・桜田淳子リサイタル3 ライブ （Live at 中野サンプラザ 1976/7/26）
リサイタル4 ～ラブ・トゥゲザー～（Live at 東京郵便貯金ホール 1977/9/14）
LIVE! 淳子リサイタル5（Live at 東京郵便貯金ホール 1978/9/17）
淳子スーパー・ライブ リサイタル6（Live at 渋谷公会堂 1979/9/8）
私小説 ＜らいぶ!!博品館劇場実況録音盤＞
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 0xe6e83b8b8ff75ff9708956d1df39774bb109ecbe796767aa6625d1d7fc228ce7. 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/JPVI07300970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe855abce21be80798e2fce9a8ebe199dca23414df8b1ee88cc58d64c80524e96. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPVI07801040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5577b72574545aa850bfad96b9a24111960b076b1836c88b67613f9f9a174bf. 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/JPVI07400730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b60fdee58800acb5a0e83a456c0da6b02882e1db510b5b49856ea49b4dc3fc8. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:31:03Z), 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/JPVI07801060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119369d985faf874c90271e79407dabc4e231a61f08d7603559ddcb8752262db. 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/JPVI07500420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc934c88b24e9562feaedfd91e6c676a82552334af83902709f75d808a14ee264. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPVI07500570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410f52724393492a7cc0b7408c300d36826bfad138682e37da7a5296a4f11479. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:27:49Z), 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/JPVI07600480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf20504518f4a40e6bb67219f4fae2648957290b2c9f36e1d268c4e8ab1cc403. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:11:17Z), 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/JPVI07600300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0579508d468ac5edaf07337f739da1fdcbccc444f9f673b0d4cadd5c17a7a376. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/JPVI08000790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc934c88b24e9562feaedfd91e6c676a82552334af83902709f75d808a14ee264. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPVI07500570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a5537f97d7305cf10a3a2cad701a34acba6312101c2055e9d52bcca6bc6d10. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/JPVI07400830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52194cfd567f5815e5bb192c2acd498f68729b7db36b7735f4008d66e4d1737. 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/JPVI07901000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead5c307e999994a972991370cc752a17d770f17ec7ebc7e9e8143373cb5f417. 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/JPVI07300850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e83b8b8ff75ff9708956d1df39774bb109ecbe796767aa6625d1d7fc228ce7. 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/JPVI07300970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe855abce21be80798e2fce9a8ebe199dca23414df8b1ee88cc58d64c80524e96. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPVI07801040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f7beedf5e2bd44a8bc2f01398b7864db006024983f18b05654c156399a5750. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/JPVI07700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efc51feba2373eaef99aa02dc5542e9cb38a3b442d943f9d22104b6ec668e23. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPVI07401240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410f52724393492a7cc0b7408c300d36826bfad138682e37da7a5296a4f11479. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPVI07600480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7379bec1dff4bfad10b7600ad16eaeb4e1c3476ce0876ea9daf080941ea181. 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/JPVI07600500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe855abce21be80798e2fce9a8ebe199dca23414df8b1ee88cc58d64c80524e96. 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/JPVI07801040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ee0d105a80e78e2f1059ebced26731e34f07eb0eb05309508a2cbf6a89db73. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:23:44Z), 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/JPVI07300730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7bd89f74a4a77a203cde9edad205c309630454163ca0c42b1b0811e7f7ad32. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/JPVI07500690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410f52724393492a7cc0b7408c300d36826bfad138682e37da7a5296a4f11479. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:45:12Z), 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/JPVI07600480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71092b652aebddd4c7d2fcd446e5a81ab17d176cf44c0aeb847388ceb26859f6. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/JPVI07500670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4753fd6e99034abee1a3b1cca19b9f308f0bc7db80ef70c7a616fd0b997f56. 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/JPVI07700670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa25bd79c4ee9c129ccd3ef0403fd7542113c9f42cf7b84f4437e2141948234. 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/JPVI07300610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7b7a4ef78023052b462b59f779faa03939febea9e7b4f8232e20a805036b15. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:40:53Z), 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/JPVI07700650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2123ae442b4c6644d22f69b754757977f54b8897e8e65a4c464d1ffb50f2a446. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/JPVI07800920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a6bc114e2852f54ecb796ee6f740e621765dcc815cda1630a0bc31cffc9a7e. 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/JPVI08000970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fca96f955ba940f2fc528e6577fcbc84bbbd57217b690611e6a25d258e75478. 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/JPVI07300630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bde80ea0d65a8a37c3789327241da1013b72cc29099cb28388ce0e97191fd7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T14:01:28Z), 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/JPVI07901140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93dba81fdd8ba1c15ad2f72fc1ecd41de0d9d9f1bda2e1f9950396c3e3adf311. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/JPVI07500550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119369d985faf874c90271e79407dabc4e231a61f08d7603559ddcb8752262db. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPVI07500420.
ラブ・淳子が禁断の木の実を食べた
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf852ee65207bda71c1a6a61e4ca7573233b9426d9e96c85065c659bc72885515. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/JPVI07801100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cdec522e2e457bd614e27c159dba7b7b0af54c417e77acd6fce52dfb77079b8. 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/JPVI07801110.
Thanks 45 ～しあわせの青い鳥 (The Live Anthology)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024112eacb99515171d26bae31517bd3e8da45f2c618c3f66c0d16aa3ea623ae. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:15:04Z), 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/JPS801835044.