Pith Number

pith:P4UMRLA4

pith:2011:P4UMRLA4TW2BOOMZQDB22DNZHM

not attested not anchored not stored refs pending

The Open Graph Archive: A Community-Driven Effort

Carsten Gutwenger, Christian Bachmaier, Franz J. Brandenburg, Jyrki Katajainen, Karsten Klein, Matthias Stegmaier, Michael Wybrow, Miro Sp\"onemann, Philip Effinger

arxiv:1109.1465 v1 · 2011-09-07 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P4UMRLA4TW2BOOMZQDB22DNZHM}

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	2026-05-18T04:08:44.395171Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f28c8ac1c9db417399980c3ad0db93b2eea9a926a9c4963d2e9d3791d9254de

Aliases

arxiv: 1109.1465 · arxiv_version: 1109.1465v1 · doi: 10.48550/arxiv.1109.1465 · pith_short_12: P4UMRLA4TW2B · pith_short_16: P4UMRLA4TW2BOOMZ · pith_short_8: P4UMRLA4

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/P4UMRLA4TW2BOOMZQDB22DNZHM \
  | 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: 7f28c8ac1c9db417399980c3ad0db93b2eea9a926a9c4963d2e9d3791d9254de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2aee8f4aaf9041c39c351e5c7205737fd35e5d688575a50b70da67cd44c5f87b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2011-09-07T14:17:43Z",
    "title_canon_sha256": "2c69a034d5db11e29d22013ddabaee889ee68115623bda429768fd4e3b4b69a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1465",
    "kind": "arxiv",
    "version": 1
  }
}