Filip Lato (born October 31, 1991) is a Polish singer, musician, and lawyer. Career Lato plays the guitar and piano. In the autumn of 2016, he participated in the seventh season of the TVP2 program
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 0x8acd3990bd45d2ba291e8c82e60ee28a3264b7576f7ec780a8ddc197aad3984a. 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/b621b467-2d60-486c-bada-ea6d7b9c0ed4.json and https://artists.proofprofile.net/proofs/artist/b621b467-2d60-486c-bada-ea6d7b9c0ed4.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 0xf427823df5ad52c568216039a187b2d77a48af3c88fa1bf9ea7844d1c7883060. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/PLC061806904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c10303839be8b7e878ce32e07e81ddbf39214e1cde5d997796c6c8eb372d2f8. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/PLC061806917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856433d74fded045ef28d6d075e1c5d9292cf9375ccb0a0428ac9e30f42d00d2. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/PLC061806918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296ecc65161010a51eaacca82012be273218a8f9c9c609c7881d5b5bf6d1166a. 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/PLC061806919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebbfc930fb74a6ad560466799157474ed93ed2d2a7b5c280fa2b2f460d2fcd7. 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/PLC061806920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d5d4181316023d659da0ed5761c23f44b6fcf09c37e9987d742266e9be7ec7. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/PLC061806921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ddcc8e243a011ad22785e96471dd434915ac74da61f5309695c8341e1c4351. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/PLC061806792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b9958248a5672efc032a545b8dc232cb2273e7b366bbeefb0cee3f29a72370. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/PLC061806923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c514952114e61a75598b4543fd662c38c44208fcb3e12057e3cef84b4c3c1c. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/PLC061806491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698e78b648313b3b20733092c36e29c61c808db1a86a54745bb510ba0254b6bb. 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/PLC061806589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe715210afaa40f62c8790b5e6fdf9e8897178396d9c65bb2a038fd8982d580d1. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/PLC061806550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a700833c8c978f9a6f289bce7169b3b42d87b1468aeca51ec3d4976ebd1cb6a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/PLC061806927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdeb4ed751243708f7ec3fdc61c761ae22b8d0adbb082301f793b350e83eff42. 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/PLC271800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c5126aeeacf6191a3b7aea855141d7b23ccbcdde4737e3b80a4e00f3c29d0e. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/PLC271800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042d477c5e4dacc4cee59eed3b8bc08a5ac8d6fa5432849c1960265b86fa3917. 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/PLC271700143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70908dd1e3b64bde929b7eb870144f7fae7dfaf9e28f6b27b029ee409d1422d. 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/PLC271800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96f81ee9d8745730a6ee3cb0c3630dbc71ce4556cebc6fd407f2d721fc04458. 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/PLC271800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6e1fbb2c1a3394b6f97a9257183a7faef49a6370b7d72abfed2c4267e91353. 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/PLC271700163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6757b204ffb520363ae846e02bf4f2299cb6fdcac3e885d0a050e60ea5feec53. 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/PLC271800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea67597d90c4e39e943f76ec170911a07c72375f9115c31bc6af4de2f44a8777. 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/PLC271800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd85884f109b233ab78eef8b9788812255fbcda3b54122532eff53ead0af115. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/PLC271800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ac7653def2377fa25341e33738a822703bd4a90ddb4fe14db9d95d7ab9a746. 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/PLC271800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf630968183cd844f868dfb1df0f5f994f385f1065ca5deb713e89fe7f961694. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/PLC271700151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff14420f999ac147ea2f11b5aa05f97b2422e133f5a924634a99de97e3c00e5. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/PLC271800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb1636f9275cf36efd7857a0ec3b20ba22f1c8bee911b29757dae5aff1ab8a9. 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/PLC271800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf4365b9f50a91539e743d3be40ff9111a986c09380c7bd23ea7f70e4fe05b5. Chain 2 (Bitcoin): anchored in block 957034 (2026-07-07T11:52:37Z), 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/PLC061806916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b27cbf49929d025f6916d6da55cc673e0d8f7ef4fbbcfb6065ea9119f82f43. 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/PLC272400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f56202069f2189a59c20313ad70237326e56a87271ee8b532e04ef832655f2. 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/PLC272400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7facc7acf7a0ce943bef52ce84d08df336e79ebb49828100ef02242233f754. 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/PLC272200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4fed81b0fdad29bc13170308e26bc952199cc22b335a0ffe2badf5aed46bb1. 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/PLC272100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f1377ce941caf9428e8af22e1072700595a58d997c453af82778cca26c3b3e. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/PLC272100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea67597d90c4e39e943f76ec170911a07c72375f9115c31bc6af4de2f44a8777. 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/PLC271800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70908dd1e3b64bde929b7eb870144f7fae7dfaf9e28f6b27b029ee409d1422d. 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/PLC271800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042d477c5e4dacc4cee59eed3b8bc08a5ac8d6fa5432849c1960265b86fa3917. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/PLC271700143.