Pith Number

pith:7FD3VCLQ

pith:2009:7FD3VCLQGKBENSEX64RKFCHWFM

not attested not anchored not stored refs pending

Scaling laws of human interaction activity

Diego Rybski, Fredrik Liljeros, Hernan A. Makse, Sergey V. Buldyrev, Shlomo Havlin

arxiv:0909.2006 v1 · 2009-09-10 · physics.soc-ph · cond-mat.stat-mech · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7FD3VCLQGKBENSEX64RKFCHWFM}

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	2026-05-18T02:43:01.059368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f947ba8970328246c897f722a288f62b3df4985bd6e5369d8f622e6f4fdc82b7

Aliases

arxiv: 0909.2006 · arxiv_version: 0909.2006v1 · doi: 10.48550/arxiv.0909.2006 · pith_short_12: 7FD3VCLQGKBE · pith_short_16: 7FD3VCLQGKBENSEX · pith_short_8: 7FD3VCLQ

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/7FD3VCLQGKBENSEX64RKFCHWFM \
  | 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: f947ba8970328246c897f722a288f62b3df4985bd6e5369d8f622e6f4fdc82b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "badd5579177771c83212d3808b3f982a7cce54c7951e57df2a97cd593da7cb8d",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2009-09-10T18:01:20Z",
    "title_canon_sha256": "aa9f534cccde0d9ede145cd43aa50d3166a7b35a73e5e21044e52e7acf48c373"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2006",
    "kind": "arxiv",
    "version": 1
  }
}