is a Japanese guitar brand owned by Hoshino Gakki. Based in Nagoya, Aichi, Japan, Hoshino Gakki was one of the first Japanese musical instrument companies to gain a significant foothold in import gui
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 0x32c3bf5e9b57cdc3238638f3062e94ddd3df1edc2bf013eb660c21d9435c0fee. 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/f4d5e9c0-6b8c-4973-b9d4-5edfd783d139.json and https://artists.proofprofile.net/proofs/artist/f4d5e9c0-6b8c-4973-b9d4-5edfd783d139.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 0xfc368112943de37c5351e7547f343ae9b896ef4f7e37aa8f9042e5ae52578d61. 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/CA5KR2480756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d2e0e1ba6de154b0f529a544e67a2147f01a8c74a9fd5fce39d58b4dd1c7ea. 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/CA5KR2480757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470ce1061b58b901cf4918cc9a44510f3f239a6cba1d9d8f43bef602efeb34e3. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/CA5KR2480758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee004b79e5613c3f893012ec1e5f035db69bcb49c0cb0f455639eccf0ead88f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CA5KR2480759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e054f504f5fbd98ee96cd22b1a8b758a44951ee45a61c5b44d2d4fdcf714c6. 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/CA5KR2480760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ed84d62fc0e59f9466e06215567ee3f874486bec714eb0fc8f874989a37c59. 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/CA5KR2480761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ef598d70795319f2ccd4d5fb47f2bacb387e5623ee7cfc8827f4c5fbafae3e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/CA5KR2480762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78cb08f0cc1bfbd99e57db735bb0995ec1094901812f1ce85d6d33afb366d86c. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/CA5KR2480763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2291ddf895bb4edab3aaea47be224cb787de3f7f05628d01a90b3006b0190f4. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/CA5KR2480765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9238fd37cca69a48d8306d8eade8037d4e49d04059bec14aa74c7a9080388b. 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/CA5KR2489733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6011c37999cf7c63a907b075ef665340f7e5c967ee688f1e0055284025bbb7c9. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/CA5KR2489729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4763ec9a7f79434b72665af2662682a23644c72e4efcd90e3158eb23daf6ddd0. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/CA5KR2489731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7275f4db9ff684289f4e316d3e2643b85fca98a35e972422e63e15fc7e2e0006. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/CA5KR2489736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c81a627aead36d082f89482daa4cf7acdf47ab2da6f8465f5d6c88e9e02e6a. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/CA5KR2489735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd393a27a2baa2415b9e6b26b30aa4706ea3d56af90e49c5270624e800b104ef5. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/CA5KR2489732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x727b5dc4957e18c414c85abe15fb010b598a6b5b9758e46f88f50c33dde8f345. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/MXA3V2400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9e395a41bf80a674c551f399b25a7b88a4cb3447d27f26bdaa7066b02bcb72. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/MXA3V2400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f394f3c1a5e6e0867e38124aa20993240ef7279a6e390faa0b12b9f73f751e. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/MXA3V2400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14931e005342ac8ed4b8183dfc3c20aac5ae22ce3724952509f5edd702adb293. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/MXA3V2400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0fb3170667897e86d481fba1781ff239251671845e1d450f8654aab8a3afce. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/MXA3V2400079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e18c02515bdffc31df112fa9403336bd4eff09b206c256f5367256d09c9f593. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/MXA3V2400062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a050910448b0b2e5d8143c65bb9bb98da4e7d7b98ea676d89c448c57b7812e. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/MXA3V2400056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9805394425877ac12e058ad90c245516ebbf3d578e25553d22c2c339e7bdc155. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/MXA3V2400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedb3d729c5be4fe22254f5e579cd463513c573c74fe7a9b2f7bf176ad21dff4. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/MXA3V2400076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde94a58a796a8f7bb4c5c5a591b5b20d932ffe781d532ad1dcb2d797bc3c9a1. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/MXA3V2400084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec42030e9fefc98e9e8ee93e887f00a75d76aa0e94d97fe7eb1a76ca115f9220. 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/MXA3V2400074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05acc98669753fdc119683003011cce6ce64dd275075a68436a9dabb4f66b788. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/MXA3V2400083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b8fbb78d105136ff6666f725bc662ed0bbecfc4a7c724c179ff6ea162b4c98. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/MXA3V2400097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97e618960025bb7ab23e1201e1fb3398995185d41746a8c65d4ad274bf9a0e6. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/MXA3V2400174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd1e6b5ff51ce4cc364318e3298048f9dedf76891d6391f44657a439e6dfc54. 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/MXA3V2400208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8903b10fc21b5afedb090451ad07d93832450de50bb77ad15f7f9be5875b2f65. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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/MXA3V2400175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572350dca055efda610a0a1f967e3aca7ac218d4808c8defcef54004a0c53541. 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/MXA3V2400210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96d976df22957fca9cad3fff63c518cd7a89787ef2c7b0840a718860b122342. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/MXA3V2400215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655c4e397fd5051f22bed93eda7dc9395ee8150305d2cda8e0626f62afdb9676. 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/MXA3V2400221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6d258475961d2bdb7e31796fe2e1eb32b635b4b2281eb1716601767e711503. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/MXA3V2400224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddd93df8afc1f3c25a39df0368e2ed0b824efc81566cc6fa39f853f1bcd416f. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/MXA3V2400227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc068007b933d6b8324ba49ba372cde5a135102a838a41bae80de349b9af27199. 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/MXA3V2400251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe8acf87d67fb1c92511133c0c2ae163550b31e365af80aa9b098c63691a9ec. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/MXA3V2400254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459209981b1ecf978afcc24ee14d42798fc591b50bbd6be70ea62a907c427c24. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/MXA3V2400258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b0dcb198d6aa3d71b8d94b8c471dd5947981e8aaad79505dc04527b5f7dd1d. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/MXA3V2400252.