Pith Number

pith:AP4PSPDG

pith:2015:AP4PSPDGVC376BUQLB3YBTRLLC

not attested not anchored not stored refs pending

Syntax-based Deep Matching of Short Texts

Hang Li, Mingxuan Wang, Qun Liu, Zhengdong Lu

arxiv:1503.02427 v6 · 2015-03-09 · cs.CL · cs.LG · cs.NE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AP4PSPDGVC376BUQLB3YBTRLLC}

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	2026-05-18T01:51:24.877916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03f8f93c66a8b7ff0690587780ce2b588e8b7e1568a1ece489c1b074f8fa5468

Aliases

arxiv: 1503.02427 · arxiv_version: 1503.02427v6 · doi: 10.48550/arxiv.1503.02427 · pith_short_12: AP4PSPDGVC37 · pith_short_16: AP4PSPDGVC376BUQ · pith_short_8: AP4PSPDG

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/AP4PSPDGVC376BUQLB3YBTRLLC \
  | 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: 03f8f93c66a8b7ff0690587780ce2b588e8b7e1568a1ece489c1b074f8fa5468

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97c2ee43783c96040701c5c943130f842ebe54a3cb189cf5abd351273b93c669",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.NE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2015-03-09T11:11:15Z",
    "title_canon_sha256": "b30164febead6331530d05f1600af8d06068257822b0b44b0256302ef23888ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.02427",
    "kind": "arxiv",
    "version": 6
  }
}