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 0x8ed19e0e815874230ade3616dc16101c9d291726f4b118436d60fce9fae40fdd. 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/be100e3a-dc00-486d-ab41-a1d757bb698b.json and https://artists.proofprofile.net/proofs/artist/be100e3a-dc00-486d-ab41-a1d757bb698b.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 0xed263616b93f42825a993a2ce95901a2dce1cec19db328e30cdf439660421295. 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/JPZ921701223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed263616b93f42825a993a2ce95901a2dce1cec19db328e30cdf439660421295. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPZ921701223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6d4ab17973a04aecccbe8c8b4b419b6a6f1eb2299fcd9215c6dd16329a5e88. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPV691700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da0a773fa62041ef182e1edf26bd4dba78784d3c233eb3f54340e9af13912f4. 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/JPV691700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5a2f3a2f1621d4e326b673e279d703c29c3f350d8a492bce6b007db1a84e69. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPV691700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446e8a797bf58d804ebcc77d10ca6b6de77720c528dd7d804341922ef5d13cc8. 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/JPV691700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ba3fd8c0277757fb1efc48674eef678edc15938aba6c1895fb8ce2b55ac125. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPV691700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b95084f558e5bcbfc0394ee11c0e2b7668b6b27550d2a915ef13b34c7640ae2. 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/JPV691700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b033439fa00c8796e4cd4d1150037a4ceec73fcc443db86e1f457e926e703e0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPV691700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6ba77a330bc002ec10484986c5c6fb40aef30cadeff94502712a940e4cb689. 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/JPB601702264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90565a00bef48de8f1f7e6a950419cdeff52be35df0d1bba8b1a3aa97bd143d. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T02:01:51Z), 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/NLZ541701632.
BOW DOWN (feat. CRAZYBOY) [Extended Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df7654d8f9b1bdc1919dbafccd2efe203bafa456f5d6e08b9d8053c9efd69eb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPV691800036.
GLAMOROUS（PKCZ(R) Sound Goes Around REMIX）
GLAMOROUS [PKCZ(R) Flamingo Dance REMIX]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3229787e9dca0175a2ae65a248e304305963c98a1f5dd382623cbcd5c2790d. 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/JPX522100067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8353dccecd2aaf08eaf421adabcb38594519ede4fca54df7df4caec405e14628. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:05:21Z), 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/JPX522100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71319dad669e78d2a851cf59918e6cdc8ee76e3e56b4c7afa9ef02e6c7f976ed. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:36:09Z), 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/JPX522200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f40ad36268ebef85a8e752df44869a6c670a1f4385d8653fe9ee917cc691da. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:51:46Z), 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/JPX522200164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cdf502782bc5ba6fabd5fda74b92094e4df0cc02e7ff8412e747489b6d0cd54. 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/JPX522300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7f35dcca6afc67bef2bbf1878443a9e762e075fa2c1b24b85fb7e91cf6fdeb. 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/JPX522300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eef51a1b38431d0fd59ad64fc748136966b5f1d6ab832db9dedb440b7bc08f3. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/JPX522300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8922cf86cad5dc1c3f70a38b1992d6bc3c02f56a493d388dc2adbe5fb0ffc6. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/JPX522400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48025325ebec5b04cec648678757cbedf1d5e8bc13135129d76566c00665e09. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/JPX522100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71319dad669e78d2a851cf59918e6cdc8ee76e3e56b4c7afa9ef02e6c7f976ed. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:10:07Z), 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/JPX522200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eef51a1b38431d0fd59ad64fc748136966b5f1d6ab832db9dedb440b7bc08f3. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:53:26Z), 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/JPX522300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede29b7346fbecf976c58effad43999b015c4c7f11d8788bc925a0aa70884175. 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/JPX522400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6e946a41ca3edae538656dfa5c30d0851c53239f8ea58c6e1a585ade14f445. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPX522400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2244037bdfa3fb34576b39996cd40f85b360129617b4d9790f0f045711efe3f6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPX522200236.
come again - PKCZ(R) Remix KYO Non-stop Mix Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ff827ffd37dc5cb1574f9a49e23ae6b2b3c25b1cb1f2d46e9611e7d167d2fb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPB601903105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ff6566fd03c1ed6fbfba5607147396c0924c9ab5befb992f2776179813ca9c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPB601800292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ff6566fd03c1ed6fbfba5607147396c0924c9ab5befb992f2776179813ca9c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPB601800292.
LDH PERFECT YEAR 2020 SPECIAL SHOWCASE HIROOMI TOSAKA “Who Are You?” SET LIST
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81885a5c6aae1beaf5f705d501775a8f8d3ad5951153098901b3fbbc372b531b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPB601601906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecb036a2deee6cff0f20d7ea505392a460dab0a76962c4f01cdf7062751b85f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPB601601500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353593b5c9846675eda099f71d55d764d6c3c1ba472df84bf5219cf28be87671. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPB601601862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81885a5c6aae1beaf5f705d501775a8f8d3ad5951153098901b3fbbc372b531b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPB601601906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89a1dd9f5372ba55a25ea0e63bde32d20693dc6fdea2acb2587761186551701. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPB601601910.