Pith Number

pith:42VYHRNF

pith:2014:42VYHRNFOJJAIICB2EMXY4WIEA

not attested not anchored not stored refs pending

Estimating the pattern frequency spectrum inside the browser

Antti Ukkonen, Matthijs van Leeuwen

arxiv:1409.7311 v2 · 2014-09-25 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{42VYHRNFOJJAIICB2EMXY4WIEA}

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	2026-05-18T02:41:24.226120Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6ab83c5a57252042041d1197c72c82033a03ec3fc1b54cbf2deed304f879f8a

Aliases

arxiv: 1409.7311 · arxiv_version: 1409.7311v2 · doi: 10.48550/arxiv.1409.7311 · pith_short_12: 42VYHRNFOJJA · pith_short_16: 42VYHRNFOJJAIICB · pith_short_8: 42VYHRNF

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/42VYHRNFOJJAIICB2EMXY4WIEA \
  | 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: e6ab83c5a57252042041d1197c72c82033a03ec3fc1b54cbf2deed304f879f8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc7a6ce5f36986a4b99476dc316890b2fc01a6409754d66e084d982b97ac3c24",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2014-09-25T16:08:14Z",
    "title_canon_sha256": "f216e2852b21edf5e2842903c77a51cf664518986db3fb4b8a78c56795911612"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.7311",
    "kind": "arxiv",
    "version": 2
  }
}