Barbora Poláková (born 3 October 1983 in Kolín) is a Czech actress and singer. Selected filmography Films Kráska v nesnázích (2006) Láska z kontejneru (2011) Láska je láska (2012) Život je ž
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 0x439472f8ccf3536aee0dd10ff92d7cab816bd1fbe75f2faf1f56071b38b38e80. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0dbebb85-1487-4184-a67b-443e19250452.json and https://artists.proofprofile.net/proofs/artist/0dbebb85-1487-4184-a67b-443e19250452.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 0xd27695e22289160bfd7bcdf86af304e8ad6e2a7b278a443ade71ac979ff61da2. 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/CZA161502828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d14ef232493673c08704e1920e1ff089bd456f5a4351cc26c1a425763c9bda5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CZA161502830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6afd5bd95e9678b3435dd2d1a000941587e4098208ff9436c0e9b66a94f050. 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/CZA161502832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1132084783ff37f907fccdb6f5dc8fdd7c1a1fa7a8c68e67076ca134142b7a73. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CZA161800222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd238314cb789df4196102c0e953883619f6d253e535eb75c8bc2471b2124eb91. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CZA161800224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bde03f2b9f3980d86fb213ee92396e292e2805e931cecbc02054474b4df9f5d. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/CZA161800223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6ad461eb2e37ef9a5ad05d9ae001367f1d357bde3308dc418e04024ac45b1a. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/CZA161800221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6718d7234c9cfef339dc574cf70cb145bed919613a4051d61191de4a05e0b616. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/CZA161800227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf063ba941b5a2ec6de438a8e6dae29f95cdf2aa4af44509e3eae212b2ea45132. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/CZA161800226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f4ca43746ca05e5708a7149affcc9126a0e6a02884e57f1fedfa168c945619. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/CZA162001125.
Voda (píseň z filmu Mazel a tajemství lesa)
Voda - píseň z filmu Mazel a tajemství lesa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322a02fa696d3d3e1090d9f41089cc58665a14266b9d852790cb04a6761b63ec. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/CZA163393762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04076dc7e95861f71ff990b04206e52dbc9bf62eb51abd7e589ff78e36e89046. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/CZH442200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0abd86eb0d32992fee957583544d4b9bb88e6eed4991425139dc1d08c5ab16. 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/CZH442200108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f9738937e6717db88ea0957b41ff564675186df16b1f5e2e1075751362135e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CZH442300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99255799caa1d3c8e7295282576ae230136a88e26cac3aed6661eb474240091. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CZH442300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40191cfc2d19bde55e12c3a11d6c1ab67223c1c4c715a7a20843a107763b496f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/CZH442300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0217f34152f79e7cbebb4fa56ab43f1c63e37f4811ed68dcfdd22879bf6b34. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/CZH442300039.
Léto s tebou (Z filmu "Prázdniny s Broučkem")
Léto s tebou - Z filmu "Prázdniny s Broučkem"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f703358e428475b40acacd54071da90e003f23b7e21cab1f7b11c4c09ab00a. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/CZA162400658.
Píseň Malého Pána a Majolenky (z filmu "Velký Pán")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6723c21e2dbef864baaa901ef2ba9fc63d3dc7dcea66613aafc441cd33d50640. 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/CZA162401786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4101229d7f04cfad460b7e78b6e6e347a195c360bc051b6036eaddedcdd3c4. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:38:30Z), 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/CZA162501905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f76cecffd34c323c4e13b7aa77fea609e3c9a702fee5800e7d4f3edb46cafd9. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:22:22Z), 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/CZA162501906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73d9a724090daae4e4080238ef4cd04d52d8e47b7bf352201927fa81702a8cb. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/CZA162501908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d58e511056c097f4ac2a519f6d3b1cc9e43ba98a723c0294cf611ca9f66b79. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/CZA162501910.