Pith Number

pith:L4PDWTDR

pith:2011:L4PDWTDR2G3W7OKORNL7GB7HQN

not attested not anchored not stored refs pending

Empirical analysis of collective human behavior for extraordinary events in blogosphere

Hayafumi Watanabe, Hideki Takayasu, Kenta Yamada, Misako Takayasu, Yukie Sano

arxiv:1107.4730 v4 · 2011-07-24 · 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{L4PDWTDR2G3W7OKORNL7GB7HQN}

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	2026-05-18T02:21:42.676587Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f1e3b4c71d1b76fb94e8b57f307e7834436c1b0f6d147e91f7a903f8d7db01c

Aliases

arxiv: 1107.4730 · arxiv_version: 1107.4730v4 · doi: 10.48550/arxiv.1107.4730 · pith_short_12: L4PDWTDR2G3W · pith_short_16: L4PDWTDR2G3W7OKO · pith_short_8: L4PDWTDR

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/L4PDWTDR2G3W7OKORNL7GB7HQN \
  | 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: 5f1e3b4c71d1b76fb94e8b57f307e7834436c1b0f6d147e91f7a903f8d7db01c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c527f977cd1f8303d74ba60be5e2ec86507342f95a5f0136373fff2dda2b2bcd",
    "cross_cats_sorted": [
      "cs.SI",
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2011-07-24T08:01:33Z",
    "title_canon_sha256": "769630d329581190c80dadc64361f84834056d9cb7d2975c40e1e33b7c0a6226"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.4730",
    "kind": "arxiv",
    "version": 4
  }
}