Pith Number

pith:2ZROYU23

pith:2015:2ZROYU23HFAEQSZNRHZVIFTD3A

not attested not anchored not stored refs pending

Description of the Odin Event Extraction Framework and Rule Language

Gus Hahn-Powell, Marco A. Valenzuela-Esc\'arcega, Mihai Surdeanu

arxiv:1509.07513 v1 · 2015-09-24 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2ZROYU23HFAEQSZNRHZVIFTD3A}

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	2026-05-18T01:32:02.582260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d662ec535b3940484b2d89f3541663d83754b5f28a28448fdcb02538f6b1783c

Aliases

arxiv: 1509.07513 · arxiv_version: 1509.07513v1 · doi: 10.48550/arxiv.1509.07513 · pith_short_12: 2ZROYU23HFAE · pith_short_16: 2ZROYU23HFAEQSZN · pith_short_8: 2ZROYU23

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/2ZROYU23HFAEQSZNRHZVIFTD3A \
  | 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: d662ec535b3940484b2d89f3541663d83754b5f28a28448fdcb02538f6b1783c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d35df86b5cdb967387a146cb5db35c562e7817651bc34639cb86e5562c4acb5b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2015-09-24T20:10:27Z",
    "title_canon_sha256": "c586cdff7b21b4832651575a0a9b73f712cc730c3f8095887634b625d667ceed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.07513",
    "kind": "arxiv",
    "version": 1
  }
}