Pith Number

pith:QU25JDZO

pith:2016:QU25JDZO3VWPNLRNCC7KJA2GJF

not attested not anchored not stored refs pending

Question Answering on Freebase via Relation Extraction and Textual Evidence

Dongyan Zhao, Kun Xu, Siva Reddy, Songfang Huang, Yansong Feng

arxiv:1603.00957 v3 · 2016-03-03 · 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{QU25JDZO3VWPNLRNCC7KJA2GJF}

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	2026-05-18T01:12:40.306270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8535d48f2edd6cf6ae2d10bea4834649735784d9c6ffe702a06999582b55f895

Aliases

arxiv: 1603.00957 · arxiv_version: 1603.00957v3 · doi: 10.48550/arxiv.1603.00957 · pith_short_12: QU25JDZO3VWP · pith_short_16: QU25JDZO3VWPNLRN · pith_short_8: QU25JDZO

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/QU25JDZO3VWPNLRNCC7KJA2GJF \
  | 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: 8535d48f2edd6cf6ae2d10bea4834649735784d9c6ffe702a06999582b55f895

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "338c5b624840686193e44f8cdf3975b8ea2d79b36bdee66e19660e1f3777128e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2016-03-03T03:22:01Z",
    "title_canon_sha256": "443b2a11bb6f85102fdc43d00f9a0de63be8a0ce9f7fec6905b1d7547b450cbc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.00957",
    "kind": "arxiv",
    "version": 3
  }
}