Kasar may refer to: Qasar, a brother of Genghis Khan Kaşar, a type of cheese Kasar, Çine, a village in Turkey Jarek Kasar (born 1983), Estonian singer Karin Kasar, member of the German music band
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6568ce4d344b49c015ca08550fd501a1d08eccb8f89adb186c5f53a4315d13. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ff2af93-3bd2-410d-b372-9ce70914e53d.json and https://artists.proofprofile.net/proofs/artist/8ff2af93-3bd2-410d-b372-9ce70914e53d.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785867428900c8329b10117ab3a14e26642fc1922dad092f2a3380b32d16c35a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZTLA2580951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb76a73211acd93221cb2e1ce18497e94bef94e7025eb222f3c2943c7ffb237. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USUYG1574260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf96c753498bd9582d9708417f526f824d7de6dd1d6c1c871641eaeb5ac7afe1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USUYG1512577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a56227db3a8133d463968fc142e5f41e84800c0e3d9468f3a47b8903e99525. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USUYG1496932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc2764954c97f42fd4e25f4939699e53262e20735a5a8e7218ff81802063d22. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USUYG1472943.
Follow Who Know Road (feat. Kuami Eugene, DSL, St.Lennon, Maya Blu & Kasar)
Follow Who Know Road (feat. Kuami Eugene, DSL, st Lennon, Maya Blu & Kasar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf15b8249041e3a8a7f354327c9153d3d8e4270905e892e78925730278f72461. 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/USUYG1542240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0dcde32d0f9b6f91b0d73404c6a6869c7efb1864ad81407181da133ae231e41. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USUYG1501086.