Pith Number

pith:3H7L7KMQ

pith:2009:3H7L7KMQTVUSEHVJVWPMB4QK7A

not attested not anchored not stored refs pending

Edge direction and the structure of networks

David V. Foster, Jacob G. Foster, Maya Paczuski, Peter Grassberger

arxiv:0908.4288 v2 · 2009-08-29 · physics.soc-ph · cond-mat.dis-nn · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3H7L7KMQTVUSEHVJVWPMB4QK7A}

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	2026-05-18T04:36:51.330055Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9febfa9909d69221ea9ad9ec0f20af831c24a7f38f1cb746287477fb639a133

Aliases

arxiv: 0908.4288 · arxiv_version: 0908.4288v2 · doi: 10.48550/arxiv.0908.4288 · pith_short_12: 3H7L7KMQTVUS · pith_short_16: 3H7L7KMQTVUSEHVJ · pith_short_8: 3H7L7KMQ

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/3H7L7KMQTVUSEHVJVWPMB4QK7A \
  | 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: d9febfa9909d69221ea9ad9ec0f20af831c24a7f38f1cb746287477fb639a133

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79272c07b488ea0dcaca60ef27c8e3a12c2b58f1d68eb4d62755d1d51b22ac51",
    "cross_cats_sorted": [
      "cond-mat.dis-nn",
      "cs.NI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2009-08-29T00:25:26Z",
    "title_canon_sha256": "d1e0cf45b32bd2de8b81ad58aab0056a6b6d7aef7a51443231a10dff090c43b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.4288",
    "kind": "arxiv",
    "version": 2
  }
}