Pith Number

pith:NNB7OU2M

pith:2011:NNB7OU2MKIRDU2RF7HIUD7LZG7

not attested not anchored not stored refs pending

Collective response of human populations to large-scale emergencies

Albert-L\'aszl\'o Barab\'asi, Dashun Wang, James P. Bagrow

arxiv:1106.0560 v1 · 2011-06-03 · physics.soc-ph · cs.SI · 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{NNB7OU2MKIRDU2RF7HIUD7LZG7}

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	2026-05-18T04:20:49.173690Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b43f7534c52223a6a25f9d141fd7937fa4f4c7554aaaf4bb028456c68a9a1c6

Aliases

arxiv: 1106.0560 · arxiv_version: 1106.0560v1 · doi: 10.48550/arxiv.1106.0560 · pith_short_12: NNB7OU2MKIRD · pith_short_16: NNB7OU2MKIRDU2RF · pith_short_8: NNB7OU2M

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/NNB7OU2MKIRDU2RF7HIUD7LZG7 \
  | 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: 6b43f7534c52223a6a25f9d141fd7937fa4f4c7554aaaf4bb028456c68a9a1c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "846ff3b5abb1ee93690beaff58ae98a7ebee7415b7bd0875d51d092d4d2ed4c7",
    "cross_cats_sorted": [
      "cs.SI",
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2011-06-03T04:12:48Z",
    "title_canon_sha256": "0db8deb478ece2dffdc586616892b05699c7c1752100c4ce6896ee0d57bfa9b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.0560",
    "kind": "arxiv",
    "version": 1
  }
}