Pith Number

pith:FR5AAOF4

pith:2013:FR5AAOF42TI2GGIFJQUNKLXAID

not attested not anchored not stored refs pending

Invariants of ideals generated by pfaffians

Elisa Gorla, Emanuela De Negri

arxiv:1303.6874 v1 · 2013-03-27 · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FR5AAOF42TI2GGIFJQUNKLXAID}

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	2026-05-18T03:29:39.518343Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c7a0038bcd4d1a319054c28d52ee040f26d2385803e88d2e4e86868ef3b9448

Aliases

arxiv: 1303.6874 · arxiv_version: 1303.6874v1 · doi: 10.48550/arxiv.1303.6874 · pith_short_12: FR5AAOF42TI2 · pith_short_16: FR5AAOF42TI2GGIF · pith_short_8: FR5AAOF4

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/FR5AAOF42TI2GGIFJQUNKLXAID \
  | 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: 2c7a0038bcd4d1a319054c28d52ee040f26d2385803e88d2e4e86868ef3b9448

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dce7a954bd455661ae10172ecf17c89b0642c230a62822909f7459c8db5c95e9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2013-03-27T16:15:43Z",
    "title_canon_sha256": "d1915e5fb40f045fa4827d812e921f60fb0ccbab5a9c71337a327d784b17bdd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.6874",
    "kind": "arxiv",
    "version": 1
  }
}