Anna Maria Jopek (born 14 December 1970) is a Polish vocalist, songwriter, and improviser. She represented Poland in the 1997 Eurovision Song Contest, with the song "Ale jestem" and finished 11th out
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 0x462bf1bcf6aedfcbbcada556b70862808b769ad06e08c9442e70b42315227de2. 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/2d064b84-d6d6-43c4-a3f6-fb7b48a16387.json and https://artists.proofprofile.net/proofs/artist/2d064b84-d6d6-43c4-a3f6-fb7b48a16387.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 0x9d8b86234a7cc4eb16da0b73b40e944b747bc0769138891e22289e85587d723e. 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/PLUM71700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf7ec39f716a7551a3167397fc4b07f3c15c369db92d4c97e2326678fae3fa5. 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/PLUM71700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ae5218d966ff42aa8b9d30bdff61492b4205fea70ec36d873d2548a364bd13. 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/PLUM71700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464278de39a899ab61036735288b2a1097f2d3cc160416dd8842b0e49a2fa353. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLUM71700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a40f208dc4e433920b2b7f3f598e6ee773bf89ab73afb28375404b349d0da75. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLUM71700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02e98f158d14d399c527df675784c055eda9948d9603a0e13db8e8a9ecd2867. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/PLUM71700015.
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 0x5f0ae575ce80403a4e381e50bed4abfa61d4c3dd9f1bf5dc04def17d1336fab9. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/PLUM71700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51046f6b855199b88992b04cc9da411127638b8119d34c63f086c5cbcaeca1d1. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/PLUM71700019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c0e3fab3da3a9f30e2400adda011d3209578ec732a80ce86cc9079851b2337. 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/PLUM71700020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24292f4d4609202e341cb34f128d3116a52ef13f8da3c1d2a3e18efc0e3fc52c. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/PLUM71700022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464c0d79a70f7c21d7e3219385e5f17fb689e02232037f69ed7decba7cc6f45f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/PLA550600249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8773c0431a53ce4f199c397fa9878a9f658c2e95c124050587da483b79c8455c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEBY72000338.
Dzisiaj mnie kochasz, jutro nienawidzisz - feat. Anna Maria Jopek
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06d9b86b1954bec05f3179c508b6458f5369f207ec9e55355097263344e36f5. 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/PLA470300009.
Zaprawdę, wierzcie mi (I) - z filmu „Herkules”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7deda1ef89e5a37eba7031b13b21b559f38940ff3ac4b48febc42b78ed5733. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USWD10526108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38d95ed2e8fc29ba68203774e2a5ba0bd398313887f062e9f9ca45ff70e77fd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PLA210400359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319a8b8a28d8c27ea722b5d89275e5d86432f93daddb3275e51634274d8f80f4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/PLA391488704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2110feb42d62b5026caa9619f58b3a5bde04bfbfbcf9c231ff614875a7f4e916. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLC062009296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5256ca1e194e092b6d9d82b3bbfafb06b1471fbeefcbe4c42940084fc9312ed3. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/PLUM71601174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8d8dcc7492b60b15cb9ab19f3652f5f5faca63dbdad3bfa886208efed04854. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USZG32200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4424823f781661303fdd7fdb0b91dadea82983bb0062cb9f9e32d7991a56813. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/PLK682100058.