{
    "tender_id": 3260246,
    "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": "2026-10-25T20:07:56Z",
            "content": "{\"cpv\": \"38000000\", \"url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/532195/dostawa-aparatury-naukowo-badawczej-dla-jednostek-uniwersytetu-przyrodniczego-w-lublinie-z-podzialem-na-10-czesci-1\", \"buyer\": \"UNIWERSYTET PRZYRODNICZY W LUBLINIE\", \"title\": \"Dostawa aparatury naukowo - badawczej dla jednostek Uniwersytetu Przyrodniczego w Lublinie, z podziałem na 10 części.\", \"region\": \"lubelskie\", \"source\": \"eb2b_public\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"LUBELSKIE\", \"source_id\": \"532195\", \"deadline_at\": \"2026-11-05T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-01T14:15:00Z\"}",
            "content_hash": "fe1db35a9efe5e0b12d3faa76332bf59dbe99881df4759a848d4ad797178c610",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "fc628f7e339291c735bd7c1622f20abdfa371ea845c548c23ac6a1d18343cda0",
            "actor": null,
            "seal": {
                "id": 2,
                "digest": "6af9ff920846d2ed2fae131d9f0f0d3d71bdf63cfd98a8a18b81289d63fe5e04",
                "file": "https://tenderiq.pl/rejestr/pieczec-2.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-2.txt.ots",
                "bitcoin_block": 973147
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-25T23:35:57Z",
            "content": "{\"cpv\": \"38000000\", \"url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/532195/dostawa-aparatury-naukowo-badawczej-dla-jednostek-uniwersytetu-przyrodniczego-w-lublinie-z-podzialem-na-10-czesci-1\", \"buyer\": \"UNIWERSYTET PRZYRODNICZY W LUBLINIE\", \"title\": \"Dostawa aparatury naukowo - badawczej dla jednostek Uniwersytetu Przyrodniczego w Lublinie, z podziałem na 10 części.\", \"region\": \"lubelskie\", \"source\": \"eb2b_public\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"LUBELSKIE\", \"source_id\": \"532195\", \"deadline_at\": \"2026-11-05T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-01T14:15:00Z\", \"procedure_url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/532195/dostawa-aparatury-naukowo-badawczej-dla-jednostek-uniwersytetu-przyrodniczego-w-lublinie-z-podzialem-na-10-czesci-1\"}",
            "content_hash": "62c2487c7807d716da984265e400a41c98a24a700ec46d5d2b69c1a791581399",
            "prev_hash": "fc628f7e339291c735bd7c1622f20abdfa371ea845c548c23ac6a1d18343cda0",
            "hash": "32a74b6f1d4dd212752da0c81389971e11f45ca21cd7bc78494fa8abcc7a682c",
            "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": "2026-10-26T23:35:15Z",
            "content": "{\"cpv\": \"38000000\", \"url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/532195/dostawa-aparatury-naukowo-badawczej-dla-jednostek-uniwersytetu-przyrodniczego-w-lublinie-z-podzialem-na-10-czesci-1\", \"buyer\": \"UNIWERSYTET PRZYRODNICZY W LUBLINIE\", \"title\": \"Dostawa aparatury naukowo - badawczej dla jednostek Uniwersytetu Przyrodniczego w Lublinie, z podziałem na 10 części.\", \"region\": \"lubelskie\", \"source\": \"eb2b_public\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"LUBELSKIE\", \"source_id\": \"532195\", \"deadline_at\": \"2026-11-05T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-01T14:15:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3811385/dostawa-aparatury-naukowo-badawczej-dla-jednostek-uniwersytetu-przyrodniczego-w-lublinie-z-podzialem-na-10-czesci-\"}",
            "content_hash": "017b82c4c7e9eac80381377ea899a0a71c4a69b1fe9f1dedc70ec6ea2dc21b7d",
            "prev_hash": "32a74b6f1d4dd212752da0c81389971e11f45ca21cd7bc78494fa8abcc7a682c",
            "hash": "bdc695a344cf2d4761efe6d0178a47145e17f17fb6c32b1b36476bea8b74e137",
            "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
            }
        },
        {
            "version": 4,
            "recorded_at": "2026-10-27T11:33:44Z",
            "content": "{\"cpv\": \"38000000\", \"url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/532195/dostawa-aparatury-naukowo-badawczej-dla-jednostek-uniwersytetu-przyrodniczego-w-lublinie-z-podzialem-na-10-czesci-1\", \"buyer\": \"UNIWERSYTET PRZYRODNICZY W LUBLINIE\", \"title\": \"Dostawa aparatury naukowo - badawczej dla jednostek Uniwersytetu Przyrodniczego w Lublinie, z podziałem na 10 części.\", \"region\": \"lubelskie\", \"source\": \"eb2b_public\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"LUBELSKIE\", \"source_id\": \"532195\", \"deadline_at\": \"2026-11-05T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-01T14:15:00Z\", \"procedure_url\": \"https://uplublin.eb2b.com.pl/open-preview-auction.html/532195/dostawa-aparatury-naukowo-badawczej-dla-jednostek-uniwersytetu-przyrodniczego-w-lublinie-z-podzialem-na-10-czesci-1\"}",
            "content_hash": "067a2091899312aa7d69182c915f3b3737952c67b0dced8593825da1aa653758",
            "prev_hash": "bdc695a344cf2d4761efe6d0178a47145e17f17fb6c32b1b36476bea8b74e137",
            "hash": "ed69acbb5f98673127e72f4ba5187aad2901e2e26e88b806b9b84c79116044c0",
            "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
            }
        },
        {
            "version": 5,
            "recorded_at": "2026-10-29T21:28:12Z",
            "content": "{\"cpv\": \"38000000\", \"url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/532195/dostawa-aparatury-naukowo-badawczej-dla-jednostek-uniwersytetu-przyrodniczego-w-lublinie-z-podzialem-na-10-czesci-1\", \"buyer\": \"UNIWERSYTET PRZYRODNICZY W LUBLINIE\", \"title\": \"Dostawa aparatury naukowo - badawczej dla jednostek Uniwersytetu Przyrodniczego w Lublinie, z podziałem na 10 części.\", \"region\": \"lubelskie\", \"source\": \"eb2b_public\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"LUBELSKIE\", \"source_id\": \"532195\", \"deadline_at\": \"2026-11-09T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-01T14:15:00Z\", \"procedure_url\": \"https://uplublin.eb2b.com.pl/open-preview-auction.html/532195/dostawa-aparatury-naukowo-badawczej-dla-jednostek-uniwersytetu-przyrodniczego-w-lublinie-z-podzialem-na-10-czesci-1\"}",
            "content_hash": "79fac1733f7c0a7b5dac0ff3795c243b413783a61aeb739e537492cabe06c954",
            "prev_hash": "ed69acbb5f98673127e72f4ba5187aad2901e2e26e88b806b9b84c79116044c0",
            "hash": "22dac7a2543706193f03d893f497963a05dc8c729c7d7a48f72d909b579c9575",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        }
    ]
}