Pith Number

pith:UC72Q2PK

pith:2019:UC72Q2PKBE6WFVAJCTK3PTCZ2X

not attested not anchored not stored refs pending

Improving the soil water module of the Decision Support System for Agrotechnology Transfer cropping system model for subsurface irrigation

Dan Chen, Kenichiro Fujiyama, Shinji Oominato, Shunsuke Akimoto, Toshihiro Hasegawa, Yusuke Kikuchi

arxiv:1908.10523 v1 · 2019-08-28 · q-bio.QM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UC72Q2PKBE6WFVAJCTK3PTCZ2X}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T00:00:18.065102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0bfa869ea093d62d40914d5b7cc59d5cd45868e2c9e52d2c36a8ae1ccd47ec6

Aliases

arxiv: 1908.10523 · arxiv_version: 1908.10523v1 · doi: 10.48550/arxiv.1908.10523 · pith_short_12: UC72Q2PKBE6W · pith_short_16: UC72Q2PKBE6WFVAJ · pith_short_8: UC72Q2PK

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/UC72Q2PKBE6WFVAJCTK3PTCZ2X \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: a0bfa869ea093d62d40914d5b7cc59d5cd45868e2c9e52d2c36a8ae1ccd47ec6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0d5cfbca91917a178a5a3ef190ccab085d5373c3091fcdf9f568a0db31d406d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2019-08-28T02:25:19Z",
    "title_canon_sha256": "412662b9303493a589dfdf7579e68fa4ce3634e1d5d0510abc01c5531cc85fdd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.10523",
    "kind": "arxiv",
    "version": 1
  }
}