Yukio Hashi (; 3 May 1943 – 4 September 2025) was a Japanese enka singer and actor. His real name is , using a different kanji. He died on 4 September 2025, at the age of 82.歌手の橋幸夫さんが死去 82歳 「潮来笠」「いつでも
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 0x35dacf8fcf03f592352e1d060fd2c200586eea1d274656113ee4dcdbfb1251b6. 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/d7e50814-3512-4b88-8052-9e7c449da7e6.json and https://artists.proofprofile.net/proofs/artist/d7e50814-3512-4b88-8052-9e7c449da7e6.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 0xba11fbeb5ece6660d41c239045e716ed9d5572505d218c2802c013581f67639c. 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/JPVI01009050.
恋をするなら2010（エレキギターアレンジ）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfeb4c5358e3bb56aa2a76450b8c71353613cb663cd08835904ba3f1b36c9538. 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/JPVI01009080.
60周年記念デュエットベスト～星よりひそかに 雨よりやさしく～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf175cf31a2e927066da280c602c2cb48f2a0923cf605929bf5423f73d6c66061. 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/JPVI06300540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc893e2065225a61608e986e7b98a6d4e6ebce0aa708a6beaf6362d82ba3a3652. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/JPVI06300570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3bfc8c83a014931a94877c1bbda477882294b8a993451d711e0f761b04a563a. 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/JPVI06400080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5156b2158335fa1b4c791e3a4a3760673fda9493411fd0e2c88590ad5805726f. 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/JPVI01211690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d18b9fd8b162899c2b162768b15b560f39ade9cf7d07eff016adcfab46ac7a4. 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/JPVI07101560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc1375f913d3bcfabf64c158c84df676b44b2d402fe15f4a93fedd745d5df91. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:27:49Z), 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/JPVI06600730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1839f3e93843c5e49724797fc5bb0529d20ed11daeec27f883384c8d2d09c33a. 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/JPVI06400100.
あの娘と僕（スイム・スイム・スイム）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5f032542c2ebc467a4c56ff4b2012d5a89d51d9684bae5b434b7039283978e. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/JPVI06500320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98493b5214b6f9c3a9d0ed6f23f9203779b76f39199a7dd79443c74b4b46459b. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:57:06Z), 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/JPVI06700920.
Tsubasa -60th Anniversary Premium Box- <Koi>
Tsubasa -60th Anniversary Premium Box- <Ai(indigo)>
Tsubasa -60th Anniversary Premium Box- <Ai(Love)>
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda47b5baa71f4f6e33549d52447a5572c91cf9a6f1894de668c9bfbcf2a83b34. 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/JPVI06500060.
Tsubasa -60th Anniversary Premium Box- <Tamashii>
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f48b7c122c21aa7b23bf035c03a86af7f96fec9e9dabaaf5f1186b683343227. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/JPVI07903770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f41e043ccd980505b2dc363d2dc961c869514dafd39c340a0c74ad9fa678b2d. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:11:54Z), 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/JPVI06700460.
Tsubasa -60th Anniversary Premium Box- <Odori>
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93e134d8f5b8be4329d093d382f7d89afde88e4cf1292e2199f7c4ce769388a. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/JPVI06200220.
Tsubasa -60th Anniversary Premium Box- <Toki>
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d18b9fd8b162899c2b162768b15b560f39ade9cf7d07eff016adcfab46ac7a4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPVI07101560.
Tsubasa -60th Anniversary Premium Box- <Michi>
Tsubasa -60th Anniversary Premium Box- <Tabi>
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2837c6ce10e5a96630df4c9fa4b2260f2797ead1c3fc9e6cd789ea1aa66b7d. 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/JPVI06000150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f125957d157cc641814d801e0f3a028f7f1393be139a3c00e150baa9589620. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPVI06100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d18b9fd8b162899c2b162768b15b560f39ade9cf7d07eff016adcfab46ac7a4. 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/JPVI07101560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2837c6ce10e5a96630df4c9fa4b2260f2797ead1c3fc9e6cd789ea1aa66b7d. 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/JPVI06000150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda47b5baa71f4f6e33549d52447a5572c91cf9a6f1894de668c9bfbcf2a83b34. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:37:26Z), 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/JPVI06500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b66e74dfc9610144a702d062e1688bca75ef99e88e02f18cebd14b1a3baca15. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T07:39:58Z), 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/JPVI06000300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc1375f913d3bcfabf64c158c84df676b44b2d402fe15f4a93fedd745d5df91. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/JPVI06600730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea192b97c9536a169adcf602cc1995c47842a27a679ebe1190510c5d6fba48a0. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/JPVI06000280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3f84e2c75e6fa323f679715a8d336fb62992d92d65cb9d2414494905351acb. 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/JPVI06000520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ecb3fbf8c53d1caa33e00ee51160baac9528278712e76169ab590599241cee. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T09:20:08Z), 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/JPVI06100810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26def44eb7124fa58b6d2f6f331ba18b05c79d06e462faffed63754266e92f48. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/JPVI06100850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98493b5214b6f9c3a9d0ed6f23f9203779b76f39199a7dd79443c74b4b46459b. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:16:23Z), 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/JPVI06700920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ed9072b531268939e2e4459e3306280a0ffab998d73dd14f504301315c6ba3. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:34:54Z), 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/JPVI06200250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e89d60cf8a25a4841c24f3ab283ffae52cac26819f07b4ce21bef19946171f. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:07:53Z), 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/JPVI06901020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1839f3e93843c5e49724797fc5bb0529d20ed11daeec27f883384c8d2d09c33a. 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/JPVI06400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3b3b57fe5d8193cb6c957267bb418146b59a4b2126bddcb7d7f1fee516398d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPVI00810110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db1e80c148adc1f607d7250420bd9de1c95d73be9632cde9ca4b652b61155b7. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:00:34Z), 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/JPVI02102857.