Pith Number

pith:ZXEPYNNA

pith:2012:ZXEPYNNALNXKZ57G5ZHNWGIEIY

not attested not anchored not stored refs pending

An Annotation Scheme for Reichenbach's Verbal Tense Structure

Leon Derczynski, Robert Gaizauskas

arxiv:1203.5062 v1 · 2012-03-22 · 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{ZXEPYNNALNXKZ57G5ZHNWGIEIY}

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	2026-05-18T03:59:28.020372Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdc8fc35a05b6eacf7e6ee4edb1904461fb0be6e17c6678586ce044b0fabe31e

Aliases

arxiv: 1203.5062 · arxiv_version: 1203.5062v1 · doi: 10.48550/arxiv.1203.5062 · pith_short_12: ZXEPYNNALNXK · pith_short_16: ZXEPYNNALNXKZ57G · pith_short_8: ZXEPYNNA

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/ZXEPYNNALNXKZ57G5ZHNWGIEIY \
  | 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: cdc8fc35a05b6eacf7e6ee4edb1904461fb0be6e17c6678586ce044b0fabe31e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f214d9f72489e854edc3290b74750286273579c1629d5e059f6d3028d4c548ae",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2012-03-22T18:05:26Z",
    "title_canon_sha256": "ce664e4430ba3dbc53b2d353cc3f47d35fcbcdac45df7f31cd8f9ff8720a19bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.5062",
    "kind": "arxiv",
    "version": 1
  }
}