Ziruza Tasmagambetova (, Ziruza Saparğaliqyzy Tasmağambetova; born 10 January 1997), known professionally as Ziruza, is a Q-pop singer, songwriter and actress. The first video clip was released in 2
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 0xc3a78765371996db4d88529ac4430ea24c8bd52ff2859f478470da693df88333. 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/dfc2b0bb-0d9a-4657-b68c-8a280b4b363e.json and https://artists.proofprofile.net/proofs/artist/dfc2b0bb-0d9a-4657-b68c-8a280b4b363e.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 0x4dfdf893be721dd5ef65659dd9b7dc285b4b05e902bc5ae8c6509f946552007f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QM4DW1786073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d86a14f4d088fd871119322ba694083f9c471cc91350811371ed7abc5ef5ee. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T08:05:54Z), 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/RUA1D1712785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270ce375d3ca41045cef949c7f03e0c984b4cc7728eddafe6b7f5d97f22d7e51. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:04:13Z), 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/RUA1D1818468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520c09a47d7e47948a8127d728bccb794b50a745275e60bb60d6fd775b8654bf. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:06:06Z), 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/RUA1D1818466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37749a44d1f92010cfb931a34d4033e0300dc808ece5ca9916e54a4442d8a4c. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/RUA1D1821360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8290fbeb8be429627e2db7eae6345c1a0dabfdd0c4ffeaff59326b5645ad1739. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/RUA1D1904297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1963ad50c13797d0a31085ee903e1eecd7f527b1d705e1a2f43453a90d6fd07c. 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/QM6MZ2082902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdcbb3c44b8c1dca558370c4c37c1b2b9228b24f1ca46092df1998da3aa22820. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:48:46Z), 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/QM6MZ2082903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a4700f197d64f94d38b8686f0bfdd120ba4c1d1db9867980528c72d76e7bf7. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:34:06Z), 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/QM6MZ2082905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92b27a47c84b156aba0edf2a892f54c07d8bbcfaecca706ec23eb2fa9b180a3. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/QM6MZ2082906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1963ad50c13797d0a31085ee903e1eecd7f527b1d705e1a2f43453a90d6fd07c. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QM6MZ2082902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffe550c2e43ba378a7723cbd5d439a310b36289c89a2c731a2d3b82b46c0e31. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QM6MZ2082907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9573bb957b221b87e6528798e3d27d581d145835d141d5eadd93918dec305778. Chain 2 (Bitcoin): anchored in block 957668 (2026-07-12T06:54:37Z), 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/FR96X2135169.