Pith Number

pith:MI5U7A4M

pith:2013:MI5U7A4MG76S2BMRYRT2MCVZFO

not attested not anchored not stored refs pending

Exploring universal patterns in human home-work commuting from mobile phone data

Carlo Ratti, Kael Greco, Kevin S. Kung, Stanislav Sobolevsky

arxiv:1311.2911 v2 · 2013-11-12 · cs.SI · cs.CY · 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{MI5U7A4MG76S2BMRYRT2MCVZFO}

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	2026-05-18T01:46:31.877855Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

623b4f838c37fd2d0591c467a60ab92b905e084a8f2fa9e236579c842832e643

Aliases

arxiv: 1311.2911 · arxiv_version: 1311.2911v2 · doi: 10.48550/arxiv.1311.2911 · pith_short_12: MI5U7A4MG76S · pith_short_16: MI5U7A4MG76S2BMR · pith_short_8: MI5U7A4M

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/MI5U7A4MG76S2BMRYRT2MCVZFO \
  | 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: 623b4f838c37fd2d0591c467a60ab92b905e084a8f2fa9e236579c842832e643

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7420ff8af6586ffd3cd3bf9bf2c6c85113b51bef4917eb4e5ee7f9858f5dace",
    "cross_cats_sorted": [
      "cs.CY",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2013-11-12T20:29:14Z",
    "title_canon_sha256": "0d671c67afb2745601fb55b78f5e909ada2f5613ba9f21144f635316d83e5807"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.2911",
    "kind": "arxiv",
    "version": 2
  }
}