Kayna Samet (born 27 September 1980 in Nice) is a French hip hop and R&B singer."Kayna Samet", Premiere.fr. Retrieved June 11, 2011 Biography Childhood During her childhood her parents divorced.
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 0x9ce24440d22b35e64218d299326e6ebeb32a240901593d009793d197a5828f11. 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/a0d46516-4bf4-4855-ba40-31a9c30a29db.json and https://artists.proofprofile.net/proofs/artist/a0d46516-4bf4-4855-ba40-31a9c30a29db.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 0x03400b978e50fb087decb08938a3663ccbf594b044672bd1b051e02b7cd1b59b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:47:14Z), 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/FR5U21200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5ef0ed14d0ffa4fa1cf715e9dda6fdb886870c30134c8f70829960fbe1dce8. 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/FR6V81705702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3b8a71f23747a00a7d237d97bd752e85e72fd92d905f862ecf249226957fbe. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/FR6V81705704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491737cd3c7ec43638d5b76063974be7486f4ea57eeae598a1da83f84fe98dc4. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FR5U21400070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ea57fa2b4a548192a4e76584aefedef26f997419a0e3e0ce0230707edad5dc. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/FR5U21400120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906b6403d37a1d30a0bcd270f9652410b7deaf81fafa12372534f06ffeb72488. 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/FR9W12231330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbeab0ac8b96bba4f18ea667ef355e12e7d016e4de76d9ab851da8656aabc7cd. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/FR9W12233946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b9bb40452bc9c063fee57a159f052c14d24f8c3206ddc849048d6010f7001e. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/FR9W12231329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb40551c3aea4b835236416f52926d44b2d4cbf911af88bbc8939f38e66506d. 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/FR9W12228687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbbbd062374237f857defc40ff8ec9695ebdd4597cbaaffa2743c643ed26096. 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/FR9W12231325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc45cc08285bab649ff226cd126d81b1382104f76518e0c48e855d0ef464f1e. 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/FR9W12231327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9caacb561a54a62fe46ef3e0e4d3df9a0b7f0e92f82fb566f3b7409f11fcbe9. 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/FR7U61200303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a863cc6a3336473b6534b353aa1423790e0915d2ae5b0fac621a08be981c9c9. 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/FR6V80853958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a3345b5dacc0a3ddb627cb36e39417ca76c5b2f95499f86d8cb3605151d99d. 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/FR9W12323788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa259af07646679610bddea1a3f27b65615a66de6c98e7147a0c1c77991b1c944. 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/FRZ111400733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e539167db03509bf05eed11260ca2fc7d7e887c1c5d8cbefc06f49ae975fd17. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR42W0700327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7002e33d8fc91e753d24224fdae1c809e3849bf4369a53761a5d5dc1732528. 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/FR9W11827149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c0f79920ad3e9ad7377f2c04cec01dfd7b32604ee7c2433f8f014bb9cd926f. 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/FR2PY1600450.