{
    "tender_id": 3823446,
    "check": {
        "ok": true,
        "versions": 4,
        "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": "2026-10-28T20:02:12Z",
            "content": "{\"cpv\": \"44531510\", \"url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,13ead8d0d3ce35bef315bfc113648ded.html\", \"buyer\": \"Alchemia S.A. Oddział Chorzów Batory\", \"title\": \"HBT / 48418 / 2026 Zespół śruby młotkowej ZS-0163-M56x5.5x430 z zabezpieczeniem antykorozyjnym i osłoną ze stali nierdzewnej\", \"region\": \"mazowieckie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"mazowieckie\", \"source_id\": \"alchemia-13ead8d0d3ce35bef315bfc113648ded\", \"deadline_at\": \"2026-10-30T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T08:03:00Z\"}",
            "content_hash": "f7e6577a4450b2776a57b9271b5b069760f6a6b81b4c4b8898855793502e8db8",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "fabdeff4a94a59964137d395188b4e9e4d9cb3ae3bf34e63e649f5eb15178b17",
            "actor": null,
            "seal": {
                "id": 5,
                "digest": "0659ce1e2aadd7f69ed1ff4603a4290c070eaa14bbeed28a3c9a7cc2127acae9",
                "file": "https://tenderiq.pl/rejestr/pieczec-5.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-5.txt.ots",
                "bitcoin_block": 973609
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-29T02:09:47Z",
            "content": "{\"cpv\": \"44531510\", \"url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,13ead8d0d3ce35bef315bfc113648ded.html\", \"buyer\": \"Alchemia S.A. Oddział Chorzów Batory\", \"title\": \"HBT / 48418 / 2026 Zespół śruby młotkowej ZS-0163-M56x5.5x430 z zabezpieczeniem antykorozyjnym i osłoną ze stali nierdzewnej\", \"region\": \"slaskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"alchemia-13ead8d0d3ce35bef315bfc113648ded\", \"deadline_at\": \"2026-10-30T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T11:09:00Z\"}",
            "content_hash": "1b9d1f33dd3a0dfb8df0a9c91b6099e401dcdd320ce008b3ae7bb3772a9bacd5",
            "prev_hash": "fabdeff4a94a59964137d395188b4e9e4d9cb3ae3bf34e63e649f5eb15178b17",
            "hash": "ea176c12dc7c612285b23065fcdd412e64ad7bd97c20bb8ec451114739742a6e",
            "actor": null,
            "seal": null
        },
        {
            "version": 3,
            "recorded_at": "2026-10-29T04:45:42Z",
            "content": "{\"cpv\": \"44531510\", \"url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,13ead8d0d3ce35bef315bfc113648ded.html\", \"buyer\": \"Alchemia S.A. Oddział Chorzów Batory\", \"title\": \"HBT / 48418 / 2026 Zespół śruby młotkowej ZS-0163-M56x5.5x430 z zabezpieczeniem antykorozyjnym i osłoną ze stali nierdzewnej\", \"region\": \"slaskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"alchemia-13ead8d0d3ce35bef315bfc113648ded\", \"deadline_at\": \"2026-10-30T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T11:09:00Z\", \"procedure_url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,13ead8d0d3ce35bef315bfc113648ded.html\"}",
            "content_hash": "ca4e0466ef0695d93854bc24205aa93df46bf7315a5435ddb64ff7469f143bde",
            "prev_hash": "ea176c12dc7c612285b23065fcdd412e64ad7bd97c20bb8ec451114739742a6e",
            "hash": "1591cf3c790a1594805f4a015ee6cc26aa57dc6b827a8251e9dd7e149f525219",
            "actor": null,
            "seal": null
        },
        {
            "version": 4,
            "recorded_at": "2026-10-29T08:55:53Z",
            "content": "{\"cpv\": \"44531510\", \"url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,13ead8d0d3ce35bef315bfc113648ded.html\", \"buyer\": \"Alchemia S.A. Oddział Chorzów Batory\", \"title\": \"HBT / 48418 / 2026 Zespół śruby młotkowej ZS-0163-M56x5.5x430 z zabezpieczeniem antykorozyjnym i osłoną ze stali nierdzewnej\", \"region\": \"mazowieckie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"mazowieckie\", \"source_id\": \"alchemia-13ead8d0d3ce35bef315bfc113648ded\", \"deadline_at\": \"2026-10-30T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T08:03:00Z\", \"procedure_url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,13ead8d0d3ce35bef315bfc113648ded.html\"}",
            "content_hash": "ec934eec3d41d61d903d7cb8e1f040b2bbedb1357193fb1840d9a17964c252b2",
            "prev_hash": "1591cf3c790a1594805f4a015ee6cc26aa57dc6b827a8251e9dd7e149f525219",
            "hash": "155b5196433f6fbb1b87ba7d2e6fbd68c268fd1dacdcd3de70f0e759161008ae",
            "actor": null,
            "seal": null
        }
    ]
}