Pith Number

pith:7OAT2L7G

pith:2022:7OAT2L7G6UYRVWM4MZ6WSURDKF

not attested not anchored not stored refs pending

Event Extraction: A Survey

Viet Dac Lai

arxiv:2210.03419 v2 · 2022-10-07 · cs.CL · cs.IR · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7OAT2L7G6UYRVWM4MZ6WSURDKF}

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	2026-07-05T05:04:51.785028Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb813d2fe6f5311ad99c667d6952235144af9777ffbbb5fe55e8d5771dda5efd

Aliases

arxiv: 2210.03419 · arxiv_version: 2210.03419v2 · doi: 10.48550/arxiv.2210.03419 · pith_short_12: 7OAT2L7G6UYR · pith_short_16: 7OAT2L7G6UYRVWM4 · pith_short_8: 7OAT2L7G

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/7OAT2L7G6UYRVWM4MZ6WSURDKF \
  | 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: fb813d2fe6f5311ad99c667d6952235144af9777ffbbb5fe55e8d5771dda5efd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f088900cd234c2014e221925f39b4b493e8fc9c60dd0a3ccfedb25c2d4f9eb57",
    "cross_cats_sorted": [
      "cs.IR",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2022-10-07T09:36:44Z",
    "title_canon_sha256": "7bf41b48f4a5e5ff0305af2a9c3b27dff64106a66a95dc8b4ee6ef0b1c1cc602"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2210.03419",
    "kind": "arxiv",
    "version": 2
  }
}