Pith Number

pith:URFJ5QRI

pith:2014:URFJ5QRIRJJZZ56636BAU6K7I2

not attested not anchored not stored refs pending

Geotagging One Hundred Million Twitter Accounts with Total Variation Minimization

David Allen, David Jurgens, Ryan Compton

arxiv:1404.7152 v2 · 2014-04-28 · 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{URFJ5QRIRJJZZ56636BAU6K7I2}

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	2026-05-18T02:25:40.383875Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a44a9ec2288a539cf7dedf820a795f46a2fab5ee3fb7e239d5033b1a2d254dad

Aliases

arxiv: 1404.7152 · arxiv_version: 1404.7152v2 · doi: 10.48550/arxiv.1404.7152 · pith_short_12: URFJ5QRIRJJZ · pith_short_16: URFJ5QRIRJJZZ566 · pith_short_8: URFJ5QRI

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/URFJ5QRIRJJZZ56636BAU6K7I2 \
  | 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: a44a9ec2288a539cf7dedf820a795f46a2fab5ee3fb7e239d5033b1a2d254dad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77d618b9a347537ab11adc2a583d912c918e660920776a44d57abd32c6646aa0",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2014-04-28T20:02:39Z",
    "title_canon_sha256": "e792676cbb3748d2fa93364fbc328fa3768fa6127ea3dd404027c62f4dfd2753"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.7152",
    "kind": "arxiv",
    "version": 2
  }
}