Pith Number

pith:QL7K3DLD

pith:2025:QL7K3DLD2GUBRJ3QIDNW4ZJFMD

not attested not anchored not stored refs pending

A Semantic Parsing Framework for End-to-End Time Normalization

Phillip Howard, Steven Bethard, Sungduk Yu, Xin Su

arxiv:2507.06450 v1 · 2025-07-08 · 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{QL7K3DLD2GUBRJ3QIDNW4ZJFMD}

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	2026-07-05T11:34:16.050078Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82fead8d63d1a818a77040db6e652560d8bb2f8cb4fd8834ff7e7e4b92fbf514

Aliases

arxiv: 2507.06450 · arxiv_version: 2507.06450v1 · doi: 10.48550/arxiv.2507.06450 · pith_short_12: QL7K3DLD2GUB · pith_short_16: QL7K3DLD2GUBRJ3Q · pith_short_8: QL7K3DLD

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/QL7K3DLD2GUBRJ3QIDNW4ZJFMD \
  | 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: 82fead8d63d1a818a77040db6e652560d8bb2f8cb4fd8834ff7e7e4b92fbf514

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b8d3794334d117007113f6c6ce330f7a49273fae2e5445eb8327d7c70e880bd",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-07-08T23:30:11Z",
    "title_canon_sha256": "fe1058730f032731f2bdb09b21c1cce8581c934e037acad950b0bc2b9876ee73"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.06450",
    "kind": "arxiv",
    "version": 1
  }
}