Pith Number

pith:IRBB3I3K

pith:2013:IRBB3I3KZPACW74XTFBN22RWG6

not attested not anchored not stored refs pending

Where in the World are You? Geolocation and Language Identification in Twitter

Devin Gaffney, Mark Graham, Scott A. Hale

arxiv:1308.0683 v1 · 2013-08-03 · cs.CY · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IRBB3I3KZPACW74XTFBN22RWG6}

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	2026-05-18T02:45:04.854060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44421da36acbc02b7f979942dd6a3637a7fdebc92d23ec4bbe72c3a885b96f2f

Aliases

arxiv: 1308.0683 · arxiv_version: 1308.0683v1 · doi: 10.48550/arxiv.1308.0683 · pith_short_12: IRBB3I3KZPAC · pith_short_16: IRBB3I3KZPACW74X · pith_short_8: IRBB3I3K

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/IRBB3I3KZPACW74XTFBN22RWG6 \
  | 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: 44421da36acbc02b7f979942dd6a3637a7fdebc92d23ec4bbe72c3a885b96f2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "784c1ba7ecf4be1130521db771040dc6500386acc54e256db0fb9f3e93c421ea",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2013-08-03T11:06:58Z",
    "title_canon_sha256": "81a1b347363886db877ea1041ec7a39c5d4fb707888951001989090d986f0085"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.0683",
    "kind": "arxiv",
    "version": 1
  }
}