Druha Rika (also Druga Rika, ) is a Ukrainian rock band from Zhytomyr. Druha Rika released seven studio albums and two compilations. The name of the band means Second river. Members Current members
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 0x1830b29f355945a36380949ffc6c88586dd7e78d1c1eb63b2b733ac607605c3d. 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/004f6372-7ff5-4a69-a8fe-c6bb70ca1888.json and https://artists.proofprofile.net/proofs/artist/004f6372-7ff5-4a69-a8fe-c6bb70ca1888.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 0x62883ff5571cc9a8e3b610103363cb0b5149357fc2e6c0f28045eef0143499ed. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/UALA11100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc14f7981b2ebf788ad74b8117d940d7b0b09e4862015d30749ae7b7a1f0ed16. 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/UALA11100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabecce062fa621814cf304b973915acc8d34e3d60331f1bc26929aed1c27a5e4. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/UALA10900170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532ff6af5440f593d4cfe9ca425882018484b47fed7d24a4fec1f9e3b8f0d7c8. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/UALA10900173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b8b3646f9557a661360c7bb4c7d0f6df72735568bd11cd9aa0ab1dd8957340. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:04:01Z), 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/UALA10900178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f54530837f8ff681d6961ee2246e46572b43f2060b5429a70ff4556df867067. 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/UALA10900180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde87ccc3d3e6d16ea43e9c3adaa3567f256ec3c10c1733c8cf226f9c63eaa5d. 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/UALA10900182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0aa76d24b8aada29106ac6414adbf34461dccfd8609e4ea06dba3744b9b1372. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:56:20Z), 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/UALA10900187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477bf9f9759e92688d77476fff22dbf48ef10313eeb9fbdff443469cb11c4b0a. 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/UALA10900204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5445f5ea121f61ff5303eae6330463fe225ea811837e616dfbb12caed117ef5d. 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/UALA11500167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5250226fd1cf75d5f4a965707263d37501c0782844ca15eb649daf70a9a1901e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:08:18Z), 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/UALA11500168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeee54c301da2ab2f1033a91162d6c288563637ee6727eeff7c70fcae82e33ce. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/UALA11500173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7cdc54bf8f4dc5d16c1828653a31c92b4c4285e02d2450da3c3657d19aa05d. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:18:12Z), 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/UALA11500176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9fc07fd40f9fe8862571d236c98368f1d5698d3d48f6df7d479c47f2428068. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:55:20Z), 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/UALA11500177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d14032c563e996c17e720c476c0071a3dc3fa180b545e9ba4b1a6c5c773b9b. 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/UALA11500180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d2a59ca5a2355b1a40e1f633b70fd491de06e72b2269b2f6bd5e48013dc413. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/UALA11500190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f6654db3a6351acd9b09b9ef5dd8d1ba2b39bd11e7f7b094f8920a57832e1d. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/UALA11300451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51537b53030c190bd8de9dce04a926c940e067784df5475587e6dc92910af798. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:09:58Z), 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/UALA11300454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2cfacb6be45330d71a0a1b9d90ffc48fe0e2d3ad100d4fe2585169889dc824. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/UALA11300459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad001a29b0899e140b7a71eafb8640e82aa0cb91a660dc487195ac3125e6d04. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/UALA11400155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34eb70d37621d2049146f3a9787e8b7c0f3168558c87a2dd759d33d88212043. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:56:51Z), 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/UALA11400157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58bebf37c2464a9a75585fa53ccda0e6f9104c66b4b3d84534bf5d400fb4592. 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/UALA11400162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b28fd97253338c76c86b1a1988925ba8c10600832e399cdb10d219e795f5cce. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/UALA11500503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f5232272537b79157125246204078385f0770526661511e45704c3c20ef25e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/UALA11500508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b325ed75440f68ee2cf1ab6eb0db3d23d22d0c219ede18bd0e8a8348625533. 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/FR59R2142617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb875bf2f09e112b55ffa5612f1ce75be33e4ab235121dab2f2889bad53060873. 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/FR59R2142625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89fc725694c10642c5826a703897b2f2e726bc192f5fab8459667e1f8cb79193. 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/FR59R2142627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb089103eea3940a0150d8c14286ff9499759caeffa69c5b0424413d030737152. 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/FR59R2142629.
ЧИ ТИ ПОЧУВ for Mariupol (yan boyEV Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f54530837f8ff681d6961ee2246e46572b43f2060b5429a70ff4556df867067. 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/UALA10900180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382b8e20b704d1e3d4ca9af06e52ff42cce67e6927c2e867f4b298b42a6d4f5e. 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/UALA10900188.