{
    "tender_id": 4129383,
    "check": {
        "ok": true,
        "versions": 13,
        "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": "2026-10-30T11:56:28Z",
            "content": "{\"cpv\": \"48000000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3673-7d6e-2326-e2d6-6b000120b362\", \"buyer\": \"Narodowy Instytut Dziedzictwa\", \"title\": \"Dostawa oprogramowania w podziale na II części.\", \"region\": \"mazowieckie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Warszawa, mazowieckie\", \"source_id\": \"2026/BZP 00512829/01\", \"deadline_at\": \"2026-11-09T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T10:49:36Z\", \"notice_number\": \"2026/BZP 00512829/01\"}",
            "content_hash": "74d1b9584387e51800501eb4e48ff939fc34e0005a0b910ed06accba7038afbf",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "a4e66db0fe5536f75b1f7caee738bcd46a34dd02272ba517d3d8b3601fdddeae",
            "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": "2026-10-30T12:45:18Z",
            "content": "{\"cpv\": \"48000000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3673-7d6e-2326-e2d6-6b000120b362\", \"buyer\": \"Narodowy Instytut Dziedzictwa\", \"title\": \"Dostawa oprogramowania w podziale na II części.\", \"region\": \"mazowieckie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Warszawa, mazowieckie\", \"source_id\": \"2026/BZP 00512829/01\", \"deadline_at\": \"2026-11-09T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T10:49:36Z\", \"notice_number\": \"2026/BZP 00512829/01\", \"procedure_url\": \"https://nid.ezamawiajacy.pl/pn/nid/demand/notice/public/241270/details\"}",
            "content_hash": "8cd3972a7904deaa42ef0226ef194dda7d4551a68f4647916de51367d6b8b7dd",
            "prev_hash": "a4e66db0fe5536f75b1f7caee738bcd46a34dd02272ba517d3d8b3601fdddeae",
            "hash": "c142d7a87db1b2c5670f7310d5ff710fccc53b6c0f8fedb30be2e1eceefc981e",
            "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": "2026-10-30T14:08:10Z",
            "content": "{\"cpv\": \"30213100\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3673-7d6e-2326-e2d6-6b000120b362\", \"buyer\": \"Narodowy Instytut Dziedzictwa\", \"title\": \"Dostawa oprogramowania w podziale na II części.\", \"region\": \"mazowieckie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Warszawa, mazowieckie\", \"source_id\": \"2026/BZP 00512829/01\", \"deadline_at\": \"2026-11-09T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T10:49:36Z\", \"notice_number\": \"2026/BZP 00512829/01\", \"procedure_url\": \"https://nid.ezamawiajacy.pl/pn/nid/demand/notice/public/241270/details\"}",
            "content_hash": "2715f5bbba86fc38020b13e9f2bc1b747c9810b08167f49fd5e7a9816f5916ca",
            "prev_hash": "c142d7a87db1b2c5670f7310d5ff710fccc53b6c0f8fedb30be2e1eceefc981e",
            "hash": "7df25042f8f11a4496285056ac761f6d71e8beffc6cb11dd8f0b6c4137ff7db3",
            "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": 4,
            "recorded_at": "2026-10-30T15:14:08Z",
            "content": "{\"cpv\": \"48000000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3673-7d6e-2326-e2d6-6b000120b362\", \"buyer\": \"Narodowy Instytut Dziedzictwa\", \"title\": \"Dostawa oprogramowania w podziale na II części.\", \"region\": \"mazowieckie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Warszawa, mazowieckie\", \"source_id\": \"2026/BZP 00512829/01\", \"deadline_at\": \"2026-11-09T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T10:49:36Z\", \"notice_number\": \"2026/BZP 00512829/01\", \"procedure_url\": \"https://nid.ezamawiajacy.pl/pn/nid/demand/notice/public/241270/details\"}",
            "content_hash": "8cd3972a7904deaa42ef0226ef194dda7d4551a68f4647916de51367d6b8b7dd",
            "prev_hash": "7df25042f8f11a4496285056ac761f6d71e8beffc6cb11dd8f0b6c4137ff7db3",
            "hash": "c5aa33109d107691271e72fcc735c846e21b69915c2b191c0aad5a4d6003080d",
            "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": 5,
            "recorded_at": "2026-10-30T16:20:10Z",
            "content": "{\"cpv\": \"30213100\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3673-7d6e-2326-e2d6-6b000120b362\", \"buyer\": \"Narodowy Instytut Dziedzictwa\", \"title\": \"Dostawa oprogramowania w podziale na II części.\", \"region\": \"mazowieckie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Warszawa, mazowieckie\", \"source_id\": \"2026/BZP 00512829/01\", \"deadline_at\": \"2026-11-09T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T10:49:36Z\", \"notice_number\": \"2026/BZP 00512829/01\", \"procedure_url\": \"https://nid.ezamawiajacy.pl/pn/nid/demand/notice/public/241270/details\"}",
            "content_hash": "2715f5bbba86fc38020b13e9f2bc1b747c9810b08167f49fd5e7a9816f5916ca",
            "prev_hash": "c5aa33109d107691271e72fcc735c846e21b69915c2b191c0aad5a4d6003080d",
            "hash": "1e48f63423b5cd2266aae7c920937475271ec0df3d88c01791bd2c6f3d47a063",
            "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": 6,
            "recorded_at": "2026-10-30T17:26:09Z",
            "content": "{\"cpv\": \"48000000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3673-7d6e-2326-e2d6-6b000120b362\", \"buyer\": \"Narodowy Instytut Dziedzictwa\", \"title\": \"Dostawa oprogramowania w podziale na II części.\", \"region\": \"mazowieckie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Warszawa, mazowieckie\", \"source_id\": \"2026/BZP 00512829/01\", \"deadline_at\": \"2026-11-09T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T10:49:36Z\", \"notice_number\": \"2026/BZP 00512829/01\", \"procedure_url\": \"https://nid.ezamawiajacy.pl/pn/nid/demand/notice/public/241270/details\"}",
            "content_hash": "8cd3972a7904deaa42ef0226ef194dda7d4551a68f4647916de51367d6b8b7dd",
            "prev_hash": "1e48f63423b5cd2266aae7c920937475271ec0df3d88c01791bd2c6f3d47a063",
            "hash": "ee6dbc52838c5683d4455fcbb54072e44def676136f0bc84ecc6edc37c14eb81",
            "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": 7,
            "recorded_at": "2026-10-31T00:07:29Z",
            "content": "{\"cpv\": \"30213100\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3673-7d6e-2326-e2d6-6b000120b362\", \"buyer\": \"Narodowy Instytut Dziedzictwa\", \"title\": \"Dostawa oprogramowania w podziale na II części.\", \"region\": \"mazowieckie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Warszawa, mazowieckie\", \"source_id\": \"2026/BZP 00512829/01\", \"deadline_at\": \"2026-11-09T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T10:49:36Z\", \"notice_number\": \"2026/BZP 00512829/01\", \"procedure_url\": \"https://nid.ezamawiajacy.pl/pn/nid/demand/notice/public/241270/details\"}",
            "content_hash": "2715f5bbba86fc38020b13e9f2bc1b747c9810b08167f49fd5e7a9816f5916ca",
            "prev_hash": "ee6dbc52838c5683d4455fcbb54072e44def676136f0bc84ecc6edc37c14eb81",
            "hash": "c7f6f50415837026d83eb7c7e404f8cd645f650b19a5d15f2010e8a9f7db31b2",
            "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": 8,
            "recorded_at": "2026-10-31T01:12:27Z",
            "content": "{\"cpv\": \"48000000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3673-7d6e-2326-e2d6-6b000120b362\", \"buyer\": \"Narodowy Instytut Dziedzictwa\", \"title\": \"Dostawa oprogramowania w podziale na II części.\", \"region\": \"mazowieckie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Warszawa, mazowieckie\", \"source_id\": \"2026/BZP 00512829/01\", \"deadline_at\": \"2026-11-09T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T10:49:36Z\", \"notice_number\": \"2026/BZP 00512829/01\", \"procedure_url\": \"https://nid.ezamawiajacy.pl/pn/nid/demand/notice/public/241270/details\"}",
            "content_hash": "8cd3972a7904deaa42ef0226ef194dda7d4551a68f4647916de51367d6b8b7dd",
            "prev_hash": "c7f6f50415837026d83eb7c7e404f8cd645f650b19a5d15f2010e8a9f7db31b2",
            "hash": "6b80b89a07d3a832441b99722f65b2f7c0b3da8a376c7f0f86315060e766717f",
            "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": 9,
            "recorded_at": "2026-10-31T14:37:33Z",
            "content": "{\"cpv\": \"30213100\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3673-7d6e-2326-e2d6-6b000120b362\", \"buyer\": \"Narodowy Instytut Dziedzictwa\", \"title\": \"Dostawa oprogramowania w podziale na II części.\", \"region\": \"mazowieckie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Warszawa, mazowieckie\", \"source_id\": \"2026/BZP 00512829/01\", \"deadline_at\": \"2026-11-09T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T10:49:36Z\", \"notice_number\": \"2026/BZP 00512829/01\", \"procedure_url\": \"https://nid.ezamawiajacy.pl/pn/nid/demand/notice/public/241270/details\"}",
            "content_hash": "2715f5bbba86fc38020b13e9f2bc1b747c9810b08167f49fd5e7a9816f5916ca",
            "prev_hash": "6b80b89a07d3a832441b99722f65b2f7c0b3da8a376c7f0f86315060e766717f",
            "hash": "38e65090c9b4364ae7e29cc04cc11b64dbc73d9a8c621f8848587633f0654c8a",
            "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": 10,
            "recorded_at": "2026-10-31T16:45:58Z",
            "content": "{\"cpv\": \"48000000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3673-7d6e-2326-e2d6-6b000120b362\", \"buyer\": \"Narodowy Instytut Dziedzictwa\", \"title\": \"Dostawa oprogramowania w podziale na II części.\", \"region\": \"mazowieckie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Warszawa, mazowieckie\", \"source_id\": \"2026/BZP 00512829/01\", \"deadline_at\": \"2026-11-09T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T10:49:36Z\", \"notice_number\": \"2026/BZP 00512829/01\", \"procedure_url\": \"https://nid.ezamawiajacy.pl/pn/nid/demand/notice/public/241270/details\"}",
            "content_hash": "8cd3972a7904deaa42ef0226ef194dda7d4551a68f4647916de51367d6b8b7dd",
            "prev_hash": "38e65090c9b4364ae7e29cc04cc11b64dbc73d9a8c621f8848587633f0654c8a",
            "hash": "ace685c78d9fccf0a2b4f04512149ecf692628d5002c274769df674372550460",
            "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": 11,
            "recorded_at": "2026-10-31T19:57:21Z",
            "content": "{\"cpv\": \"30213100\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3673-7d6e-2326-e2d6-6b000120b362\", \"buyer\": \"Narodowy Instytut Dziedzictwa\", \"title\": \"Dostawa oprogramowania w podziale na II części.\", \"region\": \"mazowieckie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Warszawa, mazowieckie\", \"source_id\": \"2026/BZP 00512829/01\", \"deadline_at\": \"2026-11-09T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T10:49:36Z\", \"notice_number\": \"2026/BZP 00512829/01\", \"procedure_url\": \"https://nid.ezamawiajacy.pl/pn/nid/demand/notice/public/241270/details\"}",
            "content_hash": "2715f5bbba86fc38020b13e9f2bc1b747c9810b08167f49fd5e7a9816f5916ca",
            "prev_hash": "ace685c78d9fccf0a2b4f04512149ecf692628d5002c274769df674372550460",
            "hash": "cb06efbefb31b8d0b4f86ad422f475bfad0d4bad25de992eb20dd8232d8504a5",
            "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": 12,
            "recorded_at": "2026-10-31T21:01:13Z",
            "content": "{\"cpv\": \"48000000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3673-7d6e-2326-e2d6-6b000120b362\", \"buyer\": \"Narodowy Instytut Dziedzictwa\", \"title\": \"Dostawa oprogramowania w podziale na II części.\", \"region\": \"mazowieckie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Warszawa, mazowieckie\", \"source_id\": \"2026/BZP 00512829/01\", \"deadline_at\": \"2026-11-09T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T10:49:36Z\", \"notice_number\": \"2026/BZP 00512829/01\", \"procedure_url\": \"https://nid.ezamawiajacy.pl/pn/nid/demand/notice/public/241270/details\"}",
            "content_hash": "8cd3972a7904deaa42ef0226ef194dda7d4551a68f4647916de51367d6b8b7dd",
            "prev_hash": "cb06efbefb31b8d0b4f86ad422f475bfad0d4bad25de992eb20dd8232d8504a5",
            "hash": "b51503bac1385ae21010691416d708bccc91da44b67da5eb2fa060a0e4434917",
            "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": 13,
            "recorded_at": "2026-11-01T03:19:08Z",
            "content": "{\"cpv\": \"30213100\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3673-7d6e-2326-e2d6-6b000120b362\", \"buyer\": \"Narodowy Instytut Dziedzictwa\", \"title\": \"Dostawa oprogramowania w podziale na II części.\", \"region\": \"mazowieckie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Warszawa, mazowieckie\", \"source_id\": \"2026/BZP 00512829/01\", \"deadline_at\": \"2026-11-09T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T10:49:36Z\", \"notice_number\": \"2026/BZP 00512829/01\", \"procedure_url\": \"https://nid.ezamawiajacy.pl/pn/nid/demand/notice/public/241270/details\"}",
            "content_hash": "2715f5bbba86fc38020b13e9f2bc1b747c9810b08167f49fd5e7a9816f5916ca",
            "prev_hash": "b51503bac1385ae21010691416d708bccc91da44b67da5eb2fa060a0e4434917",
            "hash": "061e29b9978db1762bf8ce9b32b677b6a9af0077cbd0d7cc27c9164b84736f52",
            "actor": null,
            "seal": null
        }
    ]
}