{
    "tender_id": 3348974,
    "check": {
        "ok": true,
        "versions": 2,
        "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": "2026-10-26T08:51:47Z",
            "content": "{\"cpv\": \"90910000\", \"url\": \"https://platformazakupowa.pl/transakcja/1397676\", \"buyer\": \"PWIK sp. z o.o.\", \"title\": \"Świadczenie usług sprzątania pomieszczeń dla obiektów przy ul. Bugno 2 oraz obiektów przy ul. Rybackiej 5 w Szczecinku.\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1397676\", \"deadline_at\": \"2026-11-04T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-26T06:33:00Z\", \"notice_number\": \"1397676\"}",
            "content_hash": "88b7eadc970deba0b829aaa340ed2b2a0893b29be7ff1df244aebbec4e813e11",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "2bb25ec2bebaf34ba05bf23651995328ffbd1357e0ff3bb1a91c748d13c7c1db",
            "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": 2,
            "recorded_at": "2026-10-26T23:36:13Z",
            "content": "{\"cpv\": \"90910000\", \"url\": \"https://platformazakupowa.pl/transakcja/1397676\", \"buyer\": \"PWIK sp. z o.o.\", \"title\": \"Świadczenie usług sprzątania pomieszczeń dla obiektów przy ul. Bugno 2 oraz obiektów przy ul. Rybackiej 5 w Szczecinku.\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1397676\", \"deadline_at\": \"2026-11-04T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-26T06:33:00Z\", \"notice_number\": \"1397676\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1397676\"}",
            "content_hash": "2d73a9a3afccd830ab92558b1a27ffebc0386a357955442fea422ea4a8c07fd2",
            "prev_hash": "2bb25ec2bebaf34ba05bf23651995328ffbd1357e0ff3bb1a91c748d13c7c1db",
            "hash": "b5319d92862f21f6b8973f4ef1563c298a2299659e2daf1b4cf86680159a87e1",
            "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
            }
        }
    ]
}