Datasets:
Modalities:
Text
Formats:
csv
Size:
100K - 1M
Tags:
construction
construction-economics
cost-estimation
reference-data
item-catalog
consumer-protection
License:
the dataset now has its own DOI, distinct from the papers
Browse filesJCCDB v3.1 is deposited on Zenodo as a Dataset: 10.5281/zenodo.21898745, 14 files, byte-identical to JCCDB_v3_1_RELEASE_DECLARATION.md. The card previously stated that no item-level snapshot of JCCDB existed on Zenodo. That was true when it was written this morning and stopped being true today. The DOI section now separates the dataset DOI from the three paper records, and says which one to cite.
README.md
CHANGED
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**現行版 v3.1(2026-07-27) / 65,520品目 / CC BY 4.0**
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> **このデータセットに価格は含まれません。** 収録しているのは品目名・カテゴリ・単位のみです。
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>
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> **This dataset contains NO price data.** Item names, categories and units only.
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## DOI について / On the DOIs
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- SSRN: <https://papers.ssrn.com/sol3/papers.cfm?abstract_id=6738701>
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- engrXiv: <https://doi.org/10.31224/7007>
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- Zenodo: <https://doi.org/10.5281/zenodo.20019573>
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**
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---
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note = {65,520 items / 72 coarse categories (402 fine), CC BY 4.0 single licence.
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Verified tier 13,207, Extended 52,313. No price data.
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Per-file SHA-256 in JCCDB_v3_1_RELEASE_DECLARATION.md, anchored to Bitcoin
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via the JIDEC ledger.
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papers, not the dataset.}
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}
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```
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**現行版 v3.1(2026-07-27) / 65,520品目 / CC BY 4.0**
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**データセットDOI: [10.5281/zenodo.21898745](https://doi.org/10.5281/zenodo.21898745)**
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> **このデータセットに価格は含まれません。** 収録しているのは品目名・カテゴリ・単位のみです。
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>
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> **This dataset contains NO price data.** Item names, categories and units only.
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## DOI について / On the DOIs
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DOI は2種類あります。**指しているものが違うので、混同しないでください。**
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**データセット本体(このデータそのもの)**
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- **<https://doi.org/10.5281/zenodo.21898745>** — Zenodo に Dataset として登録。14ファイル・CC BY 4.0(2026-08-12)。収録バイト列はGitHub正本および `JCCDB_v3_1_RELEASE_DECLARATION.md` のダイジェストと完全一致します。引用にはこちらを使ってください。
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**解説論文(データセットではありません)**
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- SSRN: <https://papers.ssrn.com/sol3/papers.cfm?abstract_id=6738701>
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- engrXiv: <https://doi.org/10.31224/7007>
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- Zenodo: <https://doi.org/10.5281/zenodo.20019573>
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なお、これらの論文が記述している版は **v2.1(65,729品目)** のままです。論文DOIを辿った読者に届くのは v2.1 の記述で、現行の v3.1 とは数字が違います。この差は隠さずここに書いておきます。
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**Two kinds of DOI, pointing at different things.** The dataset itself is <https://doi.org/10.5281/zenodo.21898745> (Zenodo, resource type Dataset, deposited 2026-08-12, byte-identical to the release declaration) — cite this one. The SSRN, engrXiv and Zenodo 20019573 records are the accompanying papers, and they still describe v2.1 (65,729 items).
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---
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note = {65,520 items / 72 coarse categories (402 fine), CC BY 4.0 single licence.
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Verified tier 13,207, Extended 52,313. No price data.
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Per-file SHA-256 in JCCDB_v3_1_RELEASE_DECLARATION.md, anchored to Bitcoin
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via the JIDEC ledger. Dataset DOI 10.5281/zenodo.21898745; the engrXiv DOI
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and Zenodo 20019573 are the accompanying papers, not the dataset.}
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}
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```
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