Pith Number

pith:SF7DUR37

pith:2012:SF7DUR37J4CYEJRCBUXVXKXLDB

not attested not anchored not stored refs pending

Strongly universal string hashing is fast

Daniel Lemire, Owen Kaser

arxiv:1202.4961 v6 · 2012-02-22 · cs.DB · 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{SF7DUR37J4CYEJRCBUXVXKXLDB}

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	2026-05-18T00:05:15.061175Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

917e3a477f4f058226220d2f5baaeb187914abbe5ebde2c291c0c2b399cd7834

Aliases

arxiv: 1202.4961 · arxiv_version: 1202.4961v6 · doi: 10.48550/arxiv.1202.4961 · pith_short_12: SF7DUR37J4CY · pith_short_16: SF7DUR37J4CYEJRC · pith_short_8: SF7DUR37

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/SF7DUR37J4CYEJRCBUXVXKXLDB \
  | 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: 917e3a477f4f058226220d2f5baaeb187914abbe5ebde2c291c0c2b399cd7834

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88a75bdbdad5cea11ec3bba499e093dccd7a329817cab3033afaa59deb532a45",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2012-02-22T16:34:24Z",
    "title_canon_sha256": "d0dfd938cac9362cce8c8b78f572b098ccdc15ea1315c632669bdb5a2114ef49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.4961",
    "kind": "arxiv",
    "version": 6
  }
}