Pith Number

pith:F4ORZKXK

pith:2009:F4ORZKXKF5GMORRZLIBCZOGLNV

not attested not anchored not stored refs pending

Reordering Columns for Smaller Indexes

Daniel Lemire, Owen Kaser

arxiv:0909.1346 v8 · 2009-09-07 · 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{F4ORZKXKF5GMORRZLIBCZOGLNV}

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	2026-05-18T02:24:47.332427Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f1d1caaea2f4cc746395a022cb8cb6d7353df8a8f923d04e988909459379a29

Aliases

arxiv: 0909.1346 · arxiv_version: 0909.1346v8 · doi: 10.48550/arxiv.0909.1346 · pith_short_12: F4ORZKXKF5GM · pith_short_16: F4ORZKXKF5GMORRZ · pith_short_8: F4ORZKXK

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/F4ORZKXKF5GMORRZLIBCZOGLNV \
  | 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: 2f1d1caaea2f4cc746395a022cb8cb6d7353df8a8f923d04e988909459379a29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2433d612c7a229278f32f6800cadbd4307daf802ddd5556832ffea01c4c331fd",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2009-09-07T21:34:52Z",
    "title_canon_sha256": "8def7a2bda6741e8c8a21f2c2472d6d362578019c65f6fbd1db71f31eaa1311b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.1346",
    "kind": "arxiv",
    "version": 8
  }
}