Pith Number

pith:EWMXXUMZ

pith:2026:EWMXXUMZVKZ5CZDBDBWEVQ3KAL

not attested not anchored not stored refs pending

QQ: A Language Metadata Toolkit for Multilingual NLP

Miryam de Lhoneux, Wessel Poelman, Yiyi Chen

arxiv:2603.00620 v2 · 2026-02-28 · 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{EWMXXUMZVKZ5CZDBDBWEVQ3KAL}

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	2026-07-13T01:18:03.745459Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25997bd199aab3d16461186c4ac36a02d953cc4319bed7a8d8d102227cce1004

Aliases

arxiv: 2603.00620 · arxiv_version: 2603.00620v2 · doi: 10.48550/arxiv.2603.00620 · pith_short_12: EWMXXUMZVKZ5 · pith_short_16: EWMXXUMZVKZ5CZDB · pith_short_8: EWMXXUMZ

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/EWMXXUMZVKZ5CZDBDBWEVQ3KAL \
  | 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: 25997bd199aab3d16461186c4ac36a02d953cc4319bed7a8d8d102227cce1004

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9cf1f7e888f1ac1ab180dc8b105fab53ec09ecda17f4126dbcb779e4be3feecc",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-02-28T12:29:45Z",
    "title_canon_sha256": "31b3a0c2b048f054eafac14c9f41443c4559437a3a8346c09adf389f5f095376"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.00620",
    "kind": "arxiv",
    "version": 2
  }
}