{
    "tender_id": 4222678,
    "check": {
        "ok": true,
        "versions": 3,
        "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": "2026-10-30T21:21:36Z",
            "content": "{\"cpv\": \"45000000\", \"url\": \"https://platformazakupowa.pl/transakcja/1401732\", \"buyer\": \"Gmina Wojcieszów\", \"title\": \"DR.271.22.2026 Odbudowa mostu przy ulicy Bolesława Chrobrego 200 w Wojcieszowie\", \"region\": \"dolnoslaskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1401732\", \"deadline_at\": \"2026-11-17T12:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T21:21:37Z\", \"notice_number\": \"1401732\"}",
            "content_hash": "17a1b6cbfb1695c87ef1c2d8c2afdc12e83b2fb9191af2dcdf01eeefc914b5ff",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "198ed5b075ff17c4c0936dfd0f3bf1096b5ce5c50f1ff1e67a1404158dee3caf",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-30T21:45:31Z",
            "content": "{\"cpv\": \"45000000\", \"url\": \"https://platformazakupowa.pl/transakcja/1401732\", \"buyer\": \"Gmina Wojcieszów\", \"title\": \"DR.271.22.2026 Odbudowa mostu przy ulicy Bolesława Chrobrego 200 w Wojcieszowie\", \"region\": \"dolnoslaskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1401732\", \"deadline_at\": \"2026-11-17T12:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T21:21:37Z\", \"notice_number\": \"1401732\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1401732\"}",
            "content_hash": "becd1d706de843e940a1ea91d93d5345cd9134381431f9b7fd988a673406551f",
            "prev_hash": "198ed5b075ff17c4c0936dfd0f3bf1096b5ce5c50f1ff1e67a1404158dee3caf",
            "hash": "fb0b794d436e44597db9f8c87e86322d9ca44292169b5b2a745cbc0cf7c88792",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-31T01:31:54Z",
            "content": "{\"cpv\": \"45000000\", \"url\": \"https://platformazakupowa.pl/transakcja/1401732\", \"buyer\": \"Gmina Wojcieszów\", \"title\": \"DR.271.22.2026 Odbudowa mostu przy ulicy Bolesława Chrobrego 200 w Wojcieszowie\", \"region\": \"dolnoslaskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [\"45100000\", \"45110000\", \"45200000\", \"45233000\", \"45221115\", \"45221119\", \"45221111\", \"45223210\", \"45233200\"], \"location\": \"Polska\", \"source_id\": \"1401732\", \"deadline_at\": \"2026-11-17T12:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T23:00:00Z\", \"notice_number\": \"1401732\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1401732\"}",
            "content_hash": "a2b113dbba39b2fec74e109a39581581b6668eee98efb334bdeec2748e1d8a10",
            "prev_hash": "fb0b794d436e44597db9f8c87e86322d9ca44292169b5b2a745cbc0cf7c88792",
            "hash": "d335fbbebb47da4013a7aa62920e064336476e6b68d29305ca7887c8eb946684",
            "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
            }
        }
    ]
}