Pith Number

pith:INEPOTAL

pith:2014:INEPOTALH4YWQEKNPYDSTBTLMG

not attested not anchored not stored refs pending

From mobile phone data to the spatial structure of cities

Enrique Frias-Martinez, Jos\'e J. Ramasco, Marc Barthelemy, Maxime Lenormand, Miguel Picornell, Oliva Garc\'ia Cant\'u, Ricardo Herranz, Thomas Louail

arxiv:1401.4540 v1 · 2014-01-18 · 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{INEPOTALH4YWQEKNPYDSTBTLMG}

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	2026-05-17T23:57:35.383494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4348f74c0b3f3168114d7e0729866b6199ea668651aca60765edb9562fd0680c

Aliases

arxiv: 1401.4540 · arxiv_version: 1401.4540v1 · doi: 10.48550/arxiv.1401.4540 · pith_short_12: INEPOTALH4YW · pith_short_16: INEPOTALH4YWQEKN · pith_short_8: INEPOTAL

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/INEPOTALH4YWQEKNPYDSTBTLMG \
  | 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: 4348f74c0b3f3168114d7e0729866b6199ea668651aca60765edb9562fd0680c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ecdc3858be64abe3a26394546d173dd77051d750773712fb1a29442c25039e25",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2014-01-18T13:20:06Z",
    "title_canon_sha256": "dcc69026d2fa544cbe131b62cc1f03498e24f29860e7d3e7062eb7c1220aac26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.4540",
    "kind": "arxiv",
    "version": 1
  }
}