Makka Umarovna Sagaipova () (born 1987 in Grozny, Chechen-Ingush ASSR, Soviet Union) is a Chechen singer. She is the daughter of accordion player Umar Sagaipov. Sagaipova has sung since she was six y
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 0x02621ab1f7b9ffaf5c7f1cad66493bc56ad7a25df2c2b79186866f75927c7ee4. 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/d3b65ae2-038a-4786-97bf-1134e35e857a.json and https://artists.proofprofile.net/proofs/artist/d3b65ae2-038a-4786-97bf-1134e35e857a.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 0xc1ef0306bbc94f90cb8e7d4f8066f607cfb41479cdcb4a58ad579b67e04352be. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DGA072201154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda82f507f0b37b033fb193dec29fa970522a2ef81f9cd289f6bbb16999294ea6. 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/RUA1D1910799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03ca7b759f0f446d991030b8dc9b72bf4f71dda565a4269fbf5f89ab41f0745. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T19:03:00Z), 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/RUA1D1910817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86e2c8635c1db39a9da4ad032e0566eb24a433571ea47086a4dca0333f6708c. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/RUA1D2070970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0848d00f476daf4c8252615b60fd1124ebe4948d5cd2c29866020a78a8bc4832. 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/RUA1D1910777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d348f180fc745a36504e62554015f54e84e28c6a6b8c91cae49f5d650e8631. 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/RUAGT2490437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c1ed5e8500ed8957d102eab92b6def0f213cedf9a0e7b43234a3699ef85999. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/RUAGT2565559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0ff89b54b0291e7eb1a4fb11cf6524ad36e0b02d6d00ca5b93012b20c64776. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:46:02Z), 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/RUAGT2585112.