{
    "tender_id": 4066633,
    "check": {
        "ok": true,
        "versions": 5,
        "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": "2026-10-30T02:15:51Z",
            "content": "{\"cpv\": \"30233000\", \"url\": \"https://zuw.eb2b.com.pl/open-preview-auction.html/536319/dostawa-sprzetu-komputerowego-dla-zuw-w-szczecinie\", \"buyer\": \"ZACHODNIOPOMORSKI URZĄD WOJEWÓDZKI W SZCZECINIE\", \"title\": \"Dostawa sprzętu komputerowego dla ZUW w Szczecinie\", \"region\": \"zachodniopomorskie\", \"source\": \"zuw_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"ZACHODNIOPOMORSKIE\", \"source_id\": \"536319\", \"deadline_at\": \"2026-11-06T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T22:30:00Z\"}",
            "content_hash": "c5e77e19df61365a9501c010968dfd7fb3a6ce2e92481d3dda89ce262c6374e0",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "1c0d74078fe4ebc6f4efd3f0a0f85383feed59567b8d1dfe6d26884b9e9c1876",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-30T02:45:34Z",
            "content": "{\"cpv\": \"30233000\", \"url\": \"https://zuw.eb2b.com.pl/open-preview-auction.html/536319/dostawa-sprzetu-komputerowego-dla-zuw-w-szczecinie\", \"buyer\": \"ZACHODNIOPOMORSKI URZĄD WOJEWÓDZKI W SZCZECINIE\", \"title\": \"Dostawa sprzętu komputerowego dla ZUW w Szczecinie\", \"region\": \"zachodniopomorskie\", \"source\": \"zuw_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"ZACHODNIOPOMORSKIE\", \"source_id\": \"536319\", \"deadline_at\": \"2026-11-06T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T22:30:00Z\", \"procedure_url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/536319/dostawa-sprzetu-komputerowego-dla-zuw-w-szczecinie\"}",
            "content_hash": "a43b75456eb33ed1c090d393333d4d75c708c7486b3d719081dd98b579413ca1",
            "prev_hash": "1c0d74078fe4ebc6f4efd3f0a0f85383feed59567b8d1dfe6d26884b9e9c1876",
            "hash": "85eed21a9a7a20b7d4c6aa06a769af248c722e4144cc7587567ab5fc24d26500",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-30T22:43:55Z",
            "content": "{\"cpv\": \"30213100\", \"url\": \"https://zuw.eb2b.com.pl/open-preview-auction.html/536319/dostawa-sprzetu-komputerowego-dla-zuw-w-szczecinie\", \"buyer\": \"ZACHODNIOPOMORSKI URZĄD WOJEWÓDZKI W SZCZECINIE\", \"title\": \"Dostawa sprzętu komputerowego dla ZUW w Szczecinie\", \"region\": \"zachodniopomorskie\", \"source\": \"zuw_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"ZACHODNIOPOMORSKIE\", \"source_id\": \"536319\", \"deadline_at\": \"2026-11-06T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T22:30:00Z\", \"procedure_url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/536319/dostawa-sprzetu-komputerowego-dla-zuw-w-szczecinie\"}",
            "content_hash": "ebe00bfb5545cd49c1ca072114d737431b53483a0a413bc61e629df102de759b",
            "prev_hash": "85eed21a9a7a20b7d4c6aa06a769af248c722e4144cc7587567ab5fc24d26500",
            "hash": "89eef5b7a78c67e998f20ec86483940a8e620dee51ec1b4078ebf32c7ace4862",
            "actor": null,
            "seal": {
                "id": 8,
                "digest": "b9dfb65eef062a8f7633cee107df2b59fcca72ec5f093c9ceec0396cf65cd90d",
                "file": "https://tenderiq.pl/rejestr/pieczec-8.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-8.txt.ots",
                "bitcoin_block": 974039
            }
        },
        {
            "version": 4,
            "recorded_at": "2026-10-31T12:41:55Z",
            "content": "{\"cpv\": \"30233000\", \"url\": \"https://zuw.eb2b.com.pl/open-preview-auction.html/536319/dostawa-sprzetu-komputerowego-dla-zuw-w-szczecinie\", \"buyer\": \"ZACHODNIOPOMORSKI URZĄD WOJEWÓDZKI W SZCZECINIE\", \"title\": \"Dostawa sprzętu komputerowego dla ZUW w Szczecinie\", \"region\": \"zachodniopomorskie\", \"source\": \"zuw_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"ZACHODNIOPOMORSKIE\", \"source_id\": \"536319\", \"deadline_at\": \"2026-11-06T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T22:30:00Z\", \"procedure_url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/536319/dostawa-sprzetu-komputerowego-dla-zuw-w-szczecinie\"}",
            "content_hash": "a43b75456eb33ed1c090d393333d4d75c708c7486b3d719081dd98b579413ca1",
            "prev_hash": "89eef5b7a78c67e998f20ec86483940a8e620dee51ec1b4078ebf32c7ace4862",
            "hash": "ca01dc685e7144ff198b14206b5c636235ce14e2a1c8cedbb5786d16453fce92",
            "actor": null,
            "seal": {
                "id": 8,
                "digest": "b9dfb65eef062a8f7633cee107df2b59fcca72ec5f093c9ceec0396cf65cd90d",
                "file": "https://tenderiq.pl/rejestr/pieczec-8.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-8.txt.ots",
                "bitcoin_block": 974039
            }
        },
        {
            "version": 5,
            "recorded_at": "2026-10-31T20:35:17Z",
            "content": "{\"cpv\": \"30200000\", \"url\": \"https://zuw.eb2b.com.pl/open-preview-auction.html/536319/dostawa-sprzetu-komputerowego-dla-zuw-w-szczecinie\", \"buyer\": \"ZACHODNIOPOMORSKI URZĄD WOJEWÓDZKI W SZCZECINIE\", \"title\": \"Dostawa sprzętu komputerowego dla ZUW w Szczecinie\", \"region\": \"zachodniopomorskie\", \"source\": \"zuw_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"ZACHODNIOPOMORSKIE\", \"source_id\": \"536319\", \"deadline_at\": \"2026-11-06T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T22:30:00Z\", \"procedure_url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/536319/dostawa-sprzetu-komputerowego-dla-zuw-w-szczecinie\"}",
            "content_hash": "7edc8d7aa2b5faba1e85a7526571d49a4d0097bb8bafea52e217157005d6d1fc",
            "prev_hash": "ca01dc685e7144ff198b14206b5c636235ce14e2a1c8cedbb5786d16453fce92",
            "hash": "6f49de9f169f98272ecbd5d7e5a9e879471f33d8438424020fe43329e7b8ab92",
            "actor": null,
            "seal": {
                "id": 8,
                "digest": "b9dfb65eef062a8f7633cee107df2b59fcca72ec5f093c9ceec0396cf65cd90d",
                "file": "https://tenderiq.pl/rejestr/pieczec-8.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-8.txt.ots",
                "bitcoin_block": 974039
            }
        }
    ]
}