Pith Number

pith:57WSNBJ5

pith:2015:57WSNBJ5GPW3VXA2YV3IFXKZ52

not attested not anchored not stored refs pending

A decision method for the integrability of differential-algebraic Pfaffian systems

Gabriela Jeronimo, Lisi D'Alfonso, Pablo Solern\'o

arxiv:1501.04941 v1 · 2015-01-20 · math.AC · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{57WSNBJ5GPW3VXA2YV3IFXKZ52}

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	2026-05-18T02:29:01.911726Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efed26853d33edbadc1ac57682dd59eea220534293e9181bf5e8b94d7b59b357

Aliases

arxiv: 1501.04941 · arxiv_version: 1501.04941v1 · doi: 10.48550/arxiv.1501.04941 · pith_short_12: 57WSNBJ5GPW3 · pith_short_16: 57WSNBJ5GPW3VXA2 · pith_short_8: 57WSNBJ5

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/57WSNBJ5GPW3VXA2YV3IFXKZ52 \
  | 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: efed26853d33edbadc1ac57682dd59eea220534293e9181bf5e8b94d7b59b357

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b74c3c344d5ee639d667cdce580bb9bb5edd30412d86f862a9262e66c37a534f",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2015-01-20T20:05:33Z",
    "title_canon_sha256": "979cb02cec2eb0200301d3f4af210d661a9c160a34dfa765c72c3081edde2a24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.04941",
    "kind": "arxiv",
    "version": 1
  }
}