Pith Number

pith:2VXPUVHL

pith:2017:2VXPUVHLVAA7LQMSRD5QCE5WME

not attested not anchored not stored refs pending

Stigmergy-based modeling to discover urban activity patterns from positioning data

Alex Pentland, Antonio L. Alfeo, Bruno Lepri, Gigliola Vaglini, Mario G. C. A. Cimino, Sara Egidi

arxiv:1704.03667 v2 · 2017-04-12 · cs.AI · cs.SI · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2VXPUVHLVAA7LQMSRD5QCE5WME}

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	2026-05-17T23:56:00.380947Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d56efa54eba801f5c19288fb0113b66137c57ddfb299511cf280be5119f30cab

Aliases

arxiv: 1704.03667 · arxiv_version: 1704.03667v2 · doi: 10.48550/arxiv.1704.03667 · pith_short_12: 2VXPUVHLVAA7 · pith_short_16: 2VXPUVHLVAA7LQMS · pith_short_8: 2VXPUVHL

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/2VXPUVHLVAA7LQMSRD5QCE5WME \
  | 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: d56efa54eba801f5c19288fb0113b66137c57ddfb299511cf280be5119f30cab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "edc69b764bf753020c199a2fd51b26608b4805af86be679b6291bb5827aaa83d",
    "cross_cats_sorted": [
      "cs.SI",
      "physics.soc-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2017-04-12T09:24:37Z",
    "title_canon_sha256": "2f9d6475fe2da94729644374c8d2df984074534eca8531699d7131c32c0a0cb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.03667",
    "kind": "arxiv",
    "version": 2
  }
}