Pith Number

pith:5DIYYAF2

pith:2013:5DIYYAF22QOBXUBCORPJYT2N2N

not attested not anchored not stored refs pending

Maps of Computer Science

Daniel Fried, Stephen G. Kobourov

arxiv:1304.2681 v1 · 2013-04-09 · cs.IR · cs.DL · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5DIYYAF22QOBXUBCORPJYT2N2N}

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	2026-05-18T03:28:31.087878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8d18c00bad41c1bd022745e9c4f4dd352b788eb8f45e4fc90dd7ced2fa72ff3

Aliases

arxiv: 1304.2681 · arxiv_version: 1304.2681v1 · doi: 10.48550/arxiv.1304.2681 · pith_short_12: 5DIYYAF22QOB · pith_short_16: 5DIYYAF22QOBXUBC · pith_short_8: 5DIYYAF2

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/5DIYYAF22QOBXUBCORPJYT2N2N \
  | 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: e8d18c00bad41c1bd022745e9c4f4dd352b788eb8f45e4fc90dd7ced2fa72ff3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5d8c9d909581e6b948d29577b5dfe5fe15dc794230e66c3d5e0d190d4310cd1",
    "cross_cats_sorted": [
      "cs.DL",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2013-04-09T18:03:12Z",
    "title_canon_sha256": "16d1a38841c2a1a2fbfdb61d07ca056ddbbc6ae5a6177f230cbad6b670be1b47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.2681",
    "kind": "arxiv",
    "version": 1
  }
}