{
    "tender_id": 3858531,
    "check": {
        "ok": true,
        "versions": 8,
        "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": "2026-10-29T02:06:41Z",
            "content": "{\"cpv\": \"98310000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/750194-2026\", \"buyer\": \"Mazowieckie Centrum Leczenia Chorób Płuc i Gruźlicy\", \"title\": \"Polska – Usługi prania i czyszczenia na sucho – 59/ PN/2026 Usługi prania\", \"region\": \"mazowieckie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL912, POL, PL912, POL\", \"buyer_nip\": \"5321664002\", \"source_id\": \"750194-2026\", \"deadline_at\": \"2026-11-30T09:30:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-29T01:00:00Z\"}",
            "content_hash": "5cc135af98adbad1fc7792432d05c1635f60b62b37c61811fa12009f5a06b995",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "b51c45706ad9dd2fb3e4db08a811bca4e38ef82dd85ca2d21b1a204951073faf",
            "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
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-29T11:45:35Z",
            "content": "{\"cpv\": \"98310000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/750194-2026\", \"buyer\": \"Mazowieckie Centrum Leczenia Chorób Płuc i Gruźlicy\", \"title\": \"Polska – Usługi prania i czyszczenia na sucho – 59/ PN/2026 Usługi prania\", \"region\": \"mazowieckie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL912, POL, PL912, POL\", \"buyer_nip\": \"5321664002\", \"source_id\": \"750194-2026\", \"deadline_at\": \"2026-11-30T09:30:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-29T01:00:00Z\", \"procedure_url\": \"https://ted.europa.eu/pl/notice/-/detail/750194-2026\"}",
            "content_hash": "7ea91e27e1050160a269df7647173fb468e23f22ab3f18f55c3e379f7a5e8a6c",
            "prev_hash": "b51c45706ad9dd2fb3e4db08a811bca4e38ef82dd85ca2d21b1a204951073faf",
            "hash": "9a4e6a85eab43df5b4af02b24bef49eae73a266226b3aaa946817c9b4080f14e",
            "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
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-29T13:45:36Z",
            "content": "{\"cpv\": \"98310000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/750194-2026\", \"buyer\": \"Mazowieckie Centrum Leczenia Chorób Płuc i Gruźlicy\", \"title\": \"Polska – Usługi prania i czyszczenia na sucho – 59/ PN/2026 Usługi prania\", \"region\": \"mazowieckie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL912, POL, PL912, POL\", \"buyer_nip\": \"5321664002\", \"source_id\": \"750194-2026\", \"deadline_at\": \"2026-11-30T09:30:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-29T01:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3860133/uslugi-prania\"}",
            "content_hash": "e3d7adf7721d57b87274c29437530e41c973449d3f6f00c8299c495d03821399",
            "prev_hash": "9a4e6a85eab43df5b4af02b24bef49eae73a266226b3aaa946817c9b4080f14e",
            "hash": "cd8b362dac92b327e9a48c70ea408f369d756586768e6e37710916593505a193",
            "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
            }
        },
        {
            "version": 4,
            "recorded_at": "2026-10-31T04:45:41Z",
            "content": "{\"cpv\": \"98310000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/750194-2026\", \"buyer\": \"Mazowieckie Centrum Leczenia Chorób Płuc i Gruźlicy\", \"title\": \"Polska – Usługi prania i czyszczenia na sucho – 59/ PN/2026 Usługi prania\", \"region\": \"mazowieckie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL912, POL, PL912, POL\", \"buyer_nip\": \"5321664002\", \"source_id\": \"750194-2026\", \"deadline_at\": \"2026-11-30T09:30:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-29T01:00:00Z\", \"procedure_url\": \"https://otwock-szpital.ezamawiajacy.pl/pn/otwock-szpital/demand/notice/public/240890/details\"}",
            "content_hash": "4973195e6e3d787b1122fcd7b3867e71528ce72665b1601725e449da430cfd0a",
            "prev_hash": "cd8b362dac92b327e9a48c70ea408f369d756586768e6e37710916593505a193",
            "hash": "74af025a8deb90f02a63397164ba578b1256bf4e16347fe9faf83b9afef9d379",
            "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": "2026-10-31T10:45:54Z",
            "content": "{\"cpv\": \"98310000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/750194-2026\", \"buyer\": \"Mazowieckie Centrum Leczenia Chorób Płuc i Gruźlicy\", \"title\": \"Polska – Usługi prania i czyszczenia na sucho – 59/ PN/2026 Usługi prania\", \"region\": \"mazowieckie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL912, POL, PL912, POL\", \"buyer_nip\": \"5321664002\", \"source_id\": \"750194-2026\", \"deadline_at\": \"2026-11-30T09:30:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-29T01:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3860133/uslugi-prania\"}",
            "content_hash": "e3d7adf7721d57b87274c29437530e41c973449d3f6f00c8299c495d03821399",
            "prev_hash": "74af025a8deb90f02a63397164ba578b1256bf4e16347fe9faf83b9afef9d379",
            "hash": "8c188ab7394ce4ef21bd0d129be6231186dd1b0bc5315e1dfeb9f5175b33d006",
            "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": 6,
            "recorded_at": "2026-10-31T17:45:28Z",
            "content": "{\"cpv\": \"98310000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/750194-2026\", \"buyer\": \"Mazowieckie Centrum Leczenia Chorób Płuc i Gruźlicy\", \"title\": \"Polska – Usługi prania i czyszczenia na sucho – 59/ PN/2026 Usługi prania\", \"region\": \"mazowieckie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL912, POL, PL912, POL\", \"buyer_nip\": \"5321664002\", \"source_id\": \"750194-2026\", \"deadline_at\": \"2026-11-30T09:30:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-29T01:00:00Z\", \"procedure_url\": \"https://otwock-szpital.ezamawiajacy.pl/pn/otwock-szpital/demand/notice/public/240890/details\"}",
            "content_hash": "4973195e6e3d787b1122fcd7b3867e71528ce72665b1601725e449da430cfd0a",
            "prev_hash": "8c188ab7394ce4ef21bd0d129be6231186dd1b0bc5315e1dfeb9f5175b33d006",
            "hash": "3d69bd22d7fa97a4cc9715938b73f97d71513a8578cae6cd26885e4f6ba22e3a",
            "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": 7,
            "recorded_at": "2026-11-01T00:45:51Z",
            "content": "{\"cpv\": \"98310000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/750194-2026\", \"buyer\": \"Mazowieckie Centrum Leczenia Chorób Płuc i Gruźlicy\", \"title\": \"Polska – Usługi prania i czyszczenia na sucho – 59/ PN/2026 Usługi prania\", \"region\": \"mazowieckie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL912, POL, PL912, POL\", \"buyer_nip\": \"5321664002\", \"source_id\": \"750194-2026\", \"deadline_at\": \"2026-11-30T09:30:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-29T01:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3860133/uslugi-prania\"}",
            "content_hash": "e3d7adf7721d57b87274c29437530e41c973449d3f6f00c8299c495d03821399",
            "prev_hash": "3d69bd22d7fa97a4cc9715938b73f97d71513a8578cae6cd26885e4f6ba22e3a",
            "hash": "f03250ab02fa1097fa4213b6129bf4fa659077da9c4f632ed31d07b42dc2788f",
            "actor": null,
            "seal": {
                "id": 9,
                "digest": "2dfeb1f26d6191d887699bed5d05f226d8baa25e2f81adcf1d5d9f3ce86c75c5",
                "file": "https://tenderiq.pl/rejestr/pieczec-9.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-9.txt.ots",
                "bitcoin_block": null
            }
        },
        {
            "version": 8,
            "recorded_at": "2026-11-01T06:45:18Z",
            "content": "{\"cpv\": \"98310000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/750194-2026\", \"buyer\": \"Mazowieckie Centrum Leczenia Chorób Płuc i Gruźlicy\", \"title\": \"Polska – Usługi prania i czyszczenia na sucho – 59/ PN/2026 Usługi prania\", \"region\": \"mazowieckie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL912, POL, PL912, POL\", \"buyer_nip\": \"5321664002\", \"source_id\": \"750194-2026\", \"deadline_at\": \"2026-11-30T09:30:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-29T01:00:00Z\", \"procedure_url\": \"https://otwock-szpital.ezamawiajacy.pl/pn/otwock-szpital/demand/notice/public/240890/details\"}",
            "content_hash": "4973195e6e3d787b1122fcd7b3867e71528ce72665b1601725e449da430cfd0a",
            "prev_hash": "f03250ab02fa1097fa4213b6129bf4fa659077da9c4f632ed31d07b42dc2788f",
            "hash": "abcd5cfe0837bb2163d8939a481fd730c1be8eb5dd6e8c47c291457a2293c075",
            "actor": null,
            "seal": {
                "id": 9,
                "digest": "2dfeb1f26d6191d887699bed5d05f226d8baa25e2f81adcf1d5d9f3ce86c75c5",
                "file": "https://tenderiq.pl/rejestr/pieczec-9.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-9.txt.ots",
                "bitcoin_block": null
            }
        }
    ]
}