Kalush Orchestra is a Ukrainian folk-hip hop group founded in 2021 as a side project of Kalush, performing hip-hop music in the Ukrainian language. They represented Ukraine in the Eurovision Song Cont
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 0xc766100e838055a767dea9da9e02e3a78f001d214f06f444380e165b6430525c. 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/80c290bf-1474-48bd-bbaa-d0a2dfa24be2.json and https://artists.proofprofile.net/proofs/artist/80c290bf-1474-48bd-bbaa-d0a2dfa24be2.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 0x1df034095efe386988ce772ee5997c7e837f96caa4aed790eca33172a7e58f8c. 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/DEE862200344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbcecb18b15e9dd6ede7681ece954937326defbb3337d4beadc79a4b53e188bf. 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/DEE862300563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8364f4523910f192d7f499ea1e4d895cf01e4224120b2d944e09897750115bc7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/UAEO12400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9deb67081ca1dbfd36de0ff3a46b08ce4f1f071cd375a4b06d751da530ad2d2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/UAEO12300118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcaa354f57e3eeb80b8da8b9661fa68cec96bb3e091c4aee6e6e26d00f33911. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/UAEO12300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fd04eb57f6b7dfbd99418da6746352b131c6722bcd457aee40cd3a4b20da92. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEE862301473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16392ef662f2981d7f0c3176a4c5965bbd4cee88ff78d2d5c16e76fa1e527ef4. 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/DEE862301347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9d664b1a62b7839042e3b9f97ade8858ff440ab8f24db13b88155898933d67. 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/DEE862301145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ad7a25f6aa24b6d9dd1bdfd99aa940c6e9102ae159e27402fbb8eb6358464b. 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/DEE862301146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a719878c00a1fd4f58c43e71545a6afb82a03a57b147ab3781e602627202853. 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/DEE862202331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a0b386c0f87433fd77aa1edb08eb8c6305595dee2353b1b4c574adab87b973. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEE862300954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96cea25446b0481f286eba2461f649255aaa07f58ec1230a267d872313cea7b5. 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/DEE862300325.
Нумо Козаки (Kalush Orchestra feat. KOZAK SIROMAHA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0add15479b13eb9ec68cda10f30cc64d788059a7f3eb1dfbae24971cc821e3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/PL2DY2200073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a719878c00a1fd4f58c43e71545a6afb82a03a57b147ab3781e602627202853. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEE862202331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a689b08f79e69997f5c708dc4ed6fac626b4825ba8cf60a113a7cdf844469c5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEE862202110.
In The Shadows Of Ukraine (feat. The Rasmus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee871cae02bb9b893321c959f9c053c7295fb5992e9ec2a187f2a20d88107bb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEE862201881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b65e0929290cdcfe8cc28efac9736914b8873f13ba39fc9083362a7837e205. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/RUA012101354.