The Korea is a Russian metal band from Saint Petersburg, formed in 2003 under the name Korea. The group currently consists of guitarist and founding member Aleksandr Kuznetsov, guitarist Yuri Lampochk
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 0x6d377957c00761eabe1c7a867e8ef94a9852b84858d3713a984bff135729aa0f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/24363c47-04bf-49ef-abf7-842520542410.json and https://artists.proofprofile.net/proofs/artist/24363c47-04bf-49ef-abf7-842520542410.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 0xb7da6ef4a9b8e746d836effb2ad123afae09028bfe7d50ce5b678b0b4e09c455. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QM6N22074963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326223b9930231068243e6032e6adafc469d33ecedfa3d193979a8e1d148cb89. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QM6N22074964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9326317ca5c1edbd40d871c7633fc777f6f1dbcf838ce22d928ac943629300. 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/QM6N22074965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7493c42b995ef3ac43d97cc7342cca0e922334db8e0df4c815e553d5c88b0f5f. 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/TCADB1754310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1944c0207f5c184d2b7c0d5fa5255a41705099410be518eea53c737b1c8d24. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/QM4TW2160627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d8d6692eb9b12bb64d062227b7e951fda92ad7c38626f8fc31b78e8c31420f. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QM4TW2238882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead8418236deb0330a489222f05b5e19212824bd891cebbdee9baf4db9598e25. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QM4TW2238883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79cf42ae12a4a784dfcb8e6a30543dc0771e96fb2c2d5469e03345bd67cb5925. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:01:27Z), 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/QM4TW2238886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26751a36b1477b45d125afecb57a0571566790d6a6b31845b99d6adaec860e5a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QM4TW2238890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84441071eb3b5fe8415ea66a533c2493ef6247eef7d2c1f6ce151a07f13a26db. 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/QM4TW2238893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec56a43d7c6b1221d0baa06ee5cf61b67e8a0e173c7dbbdfefd8847c1841964. 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/FRX762400462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa54adb5796fbcf9850849c1b1651c4521c2bdd8da4a75dfad05e55978c905c. 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/FRX762400463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f32fad976653361e37a4eeed361ce78d249af5a5db3382ddbe5e7215be91764. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/FRX762400464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7356693f30acfde19564272c59742308a6d6226c00bf171c7f8062bf790a0e6c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:11:10Z), 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/FRX762400472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe731426396b268943c0200fbfabaac5a07eaba47bd5b2c4e01f3ca3dbc043428. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:37:40Z), 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/DGA072488014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288c1c41f1d413a62751895556d9208912df2f9238dd15df44fd3586f9ea198f. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/DGA0R2419949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc844b259f80ddc968282156138a238206e625bb1e1864b2940a0ad31dfe26e45. 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/DGA0S2450574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c37d5e9cdcf0bc7cb5e7aeb189c53a07cf178b6bbe107930c519d1feb42d928. 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/RUA1D2561616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12960f3a7db01354ab6675620b623674025d9c86c264510d22c52c4695fcad80. 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/RUA1D2561617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1961886bc90a3a5194a5faf36042f69175d792b897a613db958a3b45b15f590. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/RUA1D2561618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a3bb8e2661c3551d43aa6846c38fb078da2171b72791f19323dd6c946be64c. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/RUA1D2561619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751295458c20e8ee2da543f3db6164e622a81a83ba06778faef68189474ac377. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/RUA1D2555679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95057bcda004375c1cb2dd54cd545bfd46a11905b9676020703e1b3f1d31a44e. 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/RUA1D2561620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef62cb3c2635ca1a89c71a6f0361f235061049c5d75191ca83fd3dfb36b556e5. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/RUA1D2561621.