Pith Number

pith:2JJGPDTS

pith:2014:2JJGPDTSQ4PR4HRQWY72VBPZUJ

not attested not anchored not stored refs pending

Document Counting in Practice

Aleksi Hartikainen, Gonzalo Navarro, Jouni Sir\'en, Juha K\"arkk\"ainen, Simon J. Puglisi, Travis Gagie

arxiv:1409.6780 v2 · 2014-09-24 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2JJGPDTSQ4PR4HRQWY72VBPZUJ}

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	2026-05-18T01:31:21.428744Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d252678e72871f1e1e30b63faa85f9a248123d27bcf928078c1d7813ff1194a2

Aliases

arxiv: 1409.6780 · arxiv_version: 1409.6780v2 · doi: 10.48550/arxiv.1409.6780 · pith_short_12: 2JJGPDTSQ4PR · pith_short_16: 2JJGPDTSQ4PR4HRQ · pith_short_8: 2JJGPDTS

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/2JJGPDTSQ4PR4HRQWY72VBPZUJ \
  | 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: d252678e72871f1e1e30b63faa85f9a248123d27bcf928078c1d7813ff1194a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12a6571c8fbefd4a01d81d6c405c61769eff96a24acfc1b6ab04f735a1434cc9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-09-24T00:27:17Z",
    "title_canon_sha256": "53ea8a46b8bf3306ce1bd70ce042f34371f526a952cc91be8896a54dec2d4452"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.6780",
    "kind": "arxiv",
    "version": 2
  }
}