{
    "tender_id": 3471856,
    "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": "2026-10-26T23:11:17Z",
            "content": "{\"cpv\": \"09123000\", \"url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/535524/dostawa-paliwa-gazowego-do-warszawskiego-osrodka-interwencji-kryzysowej-w-latach-2027-2029\", \"buyer\": \"WARSZAWSKI OŚRODEK INTERWENCJI KRYZYSOWEJ\", \"title\": \"Dostawa paliwa gazowego do Warszawskiego Ośrodka Interwencji Kryzysowej w latach 2027-2029\", \"region\": \"mazowieckie\", \"source\": \"eb2b_public\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"535524\", \"deadline_at\": \"2026-11-04T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-26T20:00:00Z\"}",
            "content_hash": "01772eff515ecce75b1f187a0a87a393bef7cf82e5feaff5df0fb341c3765b2d",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "11c660a672d834632c436df62a8bb4b345d868aa2e25f01bfb9bdc0ba1dc41d2",
            "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": 2,
            "recorded_at": "2026-10-26T23:36:03Z",
            "content": "{\"cpv\": \"09123000\", \"url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/535524/dostawa-paliwa-gazowego-do-warszawskiego-osrodka-interwencji-kryzysowej-w-latach-2027-2029\", \"buyer\": \"WARSZAWSKI OŚRODEK INTERWENCJI KRYZYSOWEJ\", \"title\": \"Dostawa paliwa gazowego do Warszawskiego Ośrodka Interwencji Kryzysowej w latach 2027-2029\", \"region\": \"mazowieckie\", \"source\": \"eb2b_public\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"535524\", \"deadline_at\": \"2026-11-04T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-26T20:00:00Z\", \"procedure_url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/535524/dostawa-paliwa-gazowego-do-warszawskiego-osrodka-interwencji-kryzysowej-w-latach-2027-2029\"}",
            "content_hash": "9f129e9144193570fde6438c4058c36bd909d07e048cb0d6f0ea6b49cb5934d6",
            "prev_hash": "11c660a672d834632c436df62a8bb4b345d868aa2e25f01bfb9bdc0ba1dc41d2",
            "hash": "1b3ff94cdeca7f5b6ea66eaa594717dfc8307acf2ab50a5ce01a2c627c0fda7e",
            "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
            }
        }
    ]
}