Pith Number

pith:IPK53LAX

pith:2019:IPK53LAXAYMPJJ2OW23YZSU3HU

not attested not anchored not stored refs pending

Using an online sample to learn about an offline population

Curtiss Cobb, Dennis M. Feehan

arxiv:1902.08289 v2 · 2019-02-21 · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IPK53LAXAYMPJJ2OW23YZSU3HU}

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	2026-05-17T23:42:02.492107Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43d5ddac170618f4a74eb6b78cca9b3d2c0b643cc70597be727d1b80bdb13d7b

Aliases

arxiv: 1902.08289 · arxiv_version: 1902.08289v2 · doi: 10.48550/arxiv.1902.08289 · pith_short_12: IPK53LAXAYMP · pith_short_16: IPK53LAXAYMPJJ2O · pith_short_8: IPK53LAX

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/IPK53LAXAYMPJJ2OW23YZSU3HU \
  | 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: 43d5ddac170618f4a74eb6b78cca9b3d2c0b643cc70597be727d1b80bdb13d7b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f14a19c453bbc8a66e935504d5798bd9fdd169a2caca513b50a19433d0ca4478",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2019-02-21T22:27:11Z",
    "title_canon_sha256": "f235cbc515e4eb72deb4f60eb286143d21c8e83a3eb51ed94aeab40c10a7c198"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.08289",
    "kind": "arxiv",
    "version": 2
  }
}