Kati Kovács (born Katalin Anna Sarolta Kovács 25 October 1944), is a Ferenc Liszt and Kossuth Award-winning Hungarian pop and rock singer, performer, lyricist and actress. Kovacs is known for her ras
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 0xc6ccf43ef7a211e2e064ac1ef5bad804cc319e2863adffb87550416f81841531. 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/00385b9e-89f4-4633-bf55-a34012e6bac5.json and https://artists.proofprofile.net/proofs/artist/00385b9e-89f4-4633-bf55-a34012e6bac5.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 0x15843357c81c0549338d4e0004d8eb7c083077940ac5eb5dc439b5fe6124f5f6. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/HUA251677401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e52875e9acf408077046d7009173cb7dd1d0b9197f226141b08bfc3e68725d. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/HUA251677402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd92aaa5df3c94fcf8db3aba4c0dd8b6e8a438d3384686e7c63813303a2f0553. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/HUA251677404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c272a53676b54965a29f8b3029028b17237a343634351369aa6b1b564778ef3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HUA251677407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c887f262506f6093cddea2a4849fba32c5d6b0b6aabf24faaabe98af70c13e. 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/HUA251677409.
Fogsz te a fox helyett charlestont járni
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4c62ea4e5a21ed4f8bb0166de81273e65cbc8075aa3bc481d2bba67aa90891. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/HUA251677411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19194a1c0f62f12c6c1f59039193bfa35086483f9c26aed52543894cc4553db3. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/HUA251677412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec133da3df261fbbdbab69bf03862f2ff6874acaa20157f393c7ced4e7721e33. 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/HUA253794408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa499939417bc5addf34db264dce083c4ae87d66e40208a01452db81b02c223b9. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/HUA251747201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e407c8648fc5671dcbf70dfc9ae63b311f1d3800f04b3b0f7f0c612c8b55466. 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/HUA253790911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8727f454f65a18d9b0b4615fe793cc98de13694790c731e9e5e4d981b017bd72. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/HUA253785304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8727f454f65a18d9b0b4615fe793cc98de13694790c731e9e5e4d981b017bd72. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/HUA253785304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0aac36b7d270399ee7d2a5ccb89267ece6d483c566cdb692045469262e4b31. 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/HUA253765401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c79ac21db6e9685952d49324446ef6df40d453c55ec20c263ea46f5f67d8066. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/HUA253765416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a876202a6ccfe39598fd0cbbb16312e4c670a1d9f53f76ab77cfd9282a0409. 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/HUA257107101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57af6ffbadb125d2455a3a09a2669e6ea8f33b40cc4e9eb5de7b9b3d04a94d6a. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/HUA253765808.
Táncdalfesztivál '68 & '69 Válogatás - Tessék választani! '70
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a887c35b6f79ea75ee450a35c310cadaabc2936bc281a434772054dd71fe002. 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/HUA253768812.