Pith Number

pith:2ZLXTO5W

pith:2018:2ZLXTO5WBCJ5F4P7APUPGO3QFH

not attested not anchored not stored refs pending

UniParse: A universal graph-based parsing toolkit

Daniel Varab, Natalie Schluter

arxiv:1807.04053 v1 · 2018-07-11 · 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{2ZLXTO5WBCJ5F4P7APUPGO3QFH}

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	2026-05-18T00:10:58.173691Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d65779bbb60893d2f1ff03e8f33b7029faebbd46449f6294d5d7016bac11553f

Aliases

arxiv: 1807.04053 · arxiv_version: 1807.04053v1 · doi: 10.48550/arxiv.1807.04053 · pith_short_12: 2ZLXTO5WBCJ5 · pith_short_16: 2ZLXTO5WBCJ5F4P7 · pith_short_8: 2ZLXTO5W

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/2ZLXTO5WBCJ5F4P7APUPGO3QFH \
  | 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: d65779bbb60893d2f1ff03e8f33b7029faebbd46449f6294d5d7016bac11553f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51fe3e23e7e77674957efc78093598e222dec126b212346285a59723da5a6f89",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-07-11T10:14:48Z",
    "title_canon_sha256": "8a342cdaa4755249a46b06fe64c11dac8e54710a47e385451da810722e31ba49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04053",
    "kind": "arxiv",
    "version": 1
  }
}