Pith Number

pith:LNXUCABT

pith:2013:LNXUCABT25XJAVG3Q3SFYLTUWX

not attested not anchored not stored refs pending

A Labeled Graph Kernel for Relationship Extraction

David Matos, Gon\c{c}alo Sim\~oes, Helena Galhardas

arxiv:1302.4874 v1 · 2013-02-20 · cs.CL · 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{LNXUCABT25XJAVG3Q3SFYLTUWX}

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	2026-05-18T03:33:10.726390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b6f410033d76e9054db86e45c2e74b5d3a84a9905dda842504ddde483d9de1b

Aliases

arxiv: 1302.4874 · arxiv_version: 1302.4874v1 · doi: 10.48550/arxiv.1302.4874 · pith_short_12: LNXUCABT25XJ · pith_short_16: LNXUCABT25XJAVG3 · pith_short_8: LNXUCABT

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/LNXUCABT25XJAVG3Q3SFYLTUWX \
  | 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: 5b6f410033d76e9054db86e45c2e74b5d3a84a9905dda842504ddde483d9de1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3350c167226da51680635137f101ebe01fe010d782b54e0e15d40629e124d0bb",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2013-02-20T11:06:25Z",
    "title_canon_sha256": "2a0a717572181da2defe34ad0ddd8520656024c6d41e097ddb3245e3183f35f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.4874",
    "kind": "arxiv",
    "version": 1
  }
}