Pith Number

pith:KN362T4W

pith:2007:KN362T4W3FBTUYUI4G4FDIPK3C

not attested not anchored not stored refs pending

Recursive n-gram hashing is pairwise independent, at best

Daniel Lemire, Owen Kaser

arxiv:0705.4676 v8 · 2007-05-31 · cs.DB · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KN362T4W3FBTUYUI4G4FDIPK3C}

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	2026-05-18T01:12:59.027393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5377ed4f96d9433a6288e1b851a1ead884bf9c2d8756759119288e66d0bdabcc

Aliases

arxiv: 0705.4676 · arxiv_version: 0705.4676v8 · doi: 10.48550/arxiv.0705.4676 · pith_short_12: KN362T4W3FBT · pith_short_16: KN362T4W3FBTUYUI · pith_short_8: KN362T4W

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/KN362T4W3FBTUYUI4G4FDIPK3C \
  | 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: 5377ed4f96d9433a6288e1b851a1ead884bf9c2d8756759119288e66d0bdabcc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4933a2466a9b8d3c28d011b8a8258eabf1c9903dff1e1c49cd7bf5228949274",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2007-05-31T18:41:28Z",
    "title_canon_sha256": "0eba3cba46f17a0dc82f1b7d635214a8d113eabc311e9c3ce6c1d246089bf6b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.4676",
    "kind": "arxiv",
    "version": 8
  }
}