{
    "tender_id": 1307536,
    "check": {
        "ok": true,
        "versions": 3,
        "broken_at": null
    },
    "formula": "content_hash = sha256(content); hash = sha256(prev_hash + \"\\n\" + tender_id + \"\\n\" + version + \"\\n\" + recorded_at + \"\\n\" + content_hash [+ \"\\n\" + actor, when the version has one])",
    "versions": [
        {
            "version": 1,
            "recorded_at": "2026-10-24T13:58:39Z",
            "content": "{\"cpv\": \"42962000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3790727/maszyna-do-grawerowania-laserowego-kart-formatu-id1-laser-engraving-machine-for-id1-format-cards\", \"buyer\": \"POLSKA WYTWÓRNIA PAPIERÓW WARTOŚCIOWYCH S.A.\", \"title\": \"Maszyna do grawerowania laserowego kart formatu ID1/ Laser engraving machine for ID1-format cards\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3790727\", \"deadline_at\": \"2026-10-27T11:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-14T20:53:06Z\", \"procedure_url\": \"https://pwpw.eb2b.com.pl/open-preview-auction.html/529160/maszyna-do-grawerowania-laserowego-kart-formatu-id1-laser-engraving-machine-for-id1-format-cards\"}",
            "content_hash": "770a94ecdbfa6736a707fdbb68050da6e1c00ccdb6e62a6238f3cea14b5033d5",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "3f7b498b67f76c1a462fd47221635ca5cbfc3057c11fbb5d5744f6f5900f021f",
            "actor": null,
            "seal": {
                "id": 1,
                "digest": "25686b149cfd327de10f8db2827c82e22b0d6a884d716cd11b36328364d6937d",
                "file": "https://tenderiq.pl/rejestr/pieczec-1.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-1.txt.ots",
                "bitcoin_block": 972985
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-25T23:35:56Z",
            "content": "{\"cpv\": \"42962000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3790727/maszyna-do-grawerowania-laserowego-kart-formatu-id1-laser-engraving-machine-for-id1-format-cards\", \"buyer\": \"POLSKA WYTWÓRNIA PAPIERÓW WARTOŚCIOWYCH S.A.\", \"title\": \"Maszyna do grawerowania laserowego kart formatu ID1/ Laser engraving machine for ID1-format cards\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3790727\", \"deadline_at\": \"2026-10-27T11:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-14T20:53:06Z\", \"procedure_url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/529160/maszyna-do-grawerowania-laserowego-kart-formatu-id1-laser-engraving-machine-for-id1-format-cards\"}",
            "content_hash": "bb765ca567c3603b93093ce159e3ec3295708e790a5914c9ab320a883c1160d9",
            "prev_hash": "3f7b498b67f76c1a462fd47221635ca5cbfc3057c11fbb5d5744f6f5900f021f",
            "hash": "e74da5252e126b927c5f80ae4def4f3cea7e8edb5c1331e809fb78c1c07d1fa2",
            "actor": null,
            "seal": {
                "id": 3,
                "digest": "1119fd2ade60dc88ac794742ff488b9486e8a488f9d77cc6d6a9444474dc1c77",
                "file": "https://tenderiq.pl/rejestr/pieczec-3.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-3.txt.ots",
                "bitcoin_block": 973309
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-26T23:35:29Z",
            "content": "{\"cpv\": \"42962000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3790727/maszyna-do-grawerowania-laserowego-kart-formatu-id1-laser-engraving-machine-for-id1-format-cards\", \"buyer\": \"POLSKA WYTWÓRNIA PAPIERÓW WARTOŚCIOWYCH S.A.\", \"title\": \"Maszyna do grawerowania laserowego kart formatu ID1/ Laser engraving machine for ID1-format cards\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3790727\", \"deadline_at\": \"2026-10-27T11:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-14T20:53:06Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3790727/maszyna-do-grawerowania-laserowego-kart-formatu-id1-laser-engraving-machine-for-id1-format-cards\"}",
            "content_hash": "92903b6021683d35a8292b97eaeacbe30972cf50766cd877144ee78719b6765b",
            "prev_hash": "e74da5252e126b927c5f80ae4def4f3cea7e8edb5c1331e809fb78c1c07d1fa2",
            "hash": "94e9144c08c1f2113a061be78acdf50a54493ace3152fb6c8f05ca2ecd75c3a6",
            "actor": null,
            "seal": {
                "id": 4,
                "digest": "1a6d1144791ca08d9453bd1c8d38a6c251eb74cb6d377626fde25c11a52ccc7a",
                "file": "https://tenderiq.pl/rejestr/pieczec-4.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-4.txt.ots",
                "bitcoin_block": 973472
            }
        }
    ]
}