Pith Number

pith:VDWQD3JO

pith:2015:VDWQD3JOISTY57VOLRJ7QQYC5Z

not attested not anchored not stored refs pending

Identifying missing dictionary entries with frequency-conserving context models

Christopher M. Danforth, Eric M. Clark, Jake Ryland Williams, James P. Bagrow, Peter Sheridan Dodds

arxiv:1503.02120 v3 · 2015-03-07 · cs.CL · cs.IT · math.IT · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VDWQD3JOISTY57VOLRJ7QQYC5Z}

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	2026-05-18T01:36:10.917262Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8ed01ed2e44a78efeae5c53f84302ee6ef536d1b1c6165f11d08d170fc3973f

Aliases

arxiv: 1503.02120 · arxiv_version: 1503.02120v3 · doi: 10.48550/arxiv.1503.02120 · pith_short_12: VDWQD3JOISTY · pith_short_16: VDWQD3JOISTY57VO · pith_short_8: VDWQD3JO

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/VDWQD3JOISTY57VOLRJ7QQYC5Z \
  | 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: a8ed01ed2e44a78efeae5c53f84302ee6ef536d1b1c6165f11d08d170fc3973f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20c88809435a6add5c000c853dd0e79d4887faf5237523fd44283b3ca3affb7d",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2015-03-07T02:45:06Z",
    "title_canon_sha256": "7cda4a1ba1398a955bff0562b00155c5cf892ae04e97d61be89e8fc7fe33a999"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.02120",
    "kind": "arxiv",
    "version": 3
  }
}