Pith Number

pith:4QCOOOYQ

pith:2009:4QCOOOYQ5SJZ46ZWUWRTKD6ARQ

not attested not anchored not stored refs pending

Sign patterns for chemical reaction networks

Igor Klep, J. William Helton, Vitaly Katsnelson

arxiv:0904.2960 v1 · 2009-04-20 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4QCOOOYQ5SJZ46ZWUWRTKD6ARQ}

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	2026-05-18T04:24:06.425500Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e404e73b10ec939e7b36a5a3350fc08c02a856d785b91b448c29a7c7c7e0c589

Aliases

arxiv: 0904.2960 · arxiv_version: 0904.2960v1 · doi: 10.48550/arxiv.0904.2960 · pith_short_12: 4QCOOOYQ5SJZ · pith_short_16: 4QCOOOYQ5SJZ46ZW · pith_short_8: 4QCOOOYQ

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/4QCOOOYQ5SJZ46ZWUWRTKD6ARQ \
  | 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: e404e73b10ec939e7b36a5a3350fc08c02a856d785b91b448c29a7c7c7e0c589

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebc6b9c131826030d48c79e0285e1ea4a44a7e40ea7fd78148492e9e3be4f3ca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2009-04-20T07:50:51Z",
    "title_canon_sha256": "6b48d0773871e2f0d54619c0c2b278599bdd6ffbc6346c86e96775cbda8a197d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2960",
    "kind": "arxiv",
    "version": 1
  }
}