Pith Number

pith:CW7NCLNJ

pith:2012:CW7NCLNJFMVSPLLQZI46KBHU5P

not attested not anchored not stored refs pending

Computing n-Gram Statistics in MapReduce

Klaus Berberich, Srikanta Bedathur

arxiv:1207.4371 v1 · 2012-07-18 · cs.IR · cs.DB · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CW7NCLNJFMVSPLLQZI46KBHU5P}

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	2026-05-18T03:50:46.892220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15bed12da92b2b27ad70ca39e504f4ebd98b8ea06c9145b0c836e6167c281240

Aliases

arxiv: 1207.4371 · arxiv_version: 1207.4371v1 · doi: 10.48550/arxiv.1207.4371 · pith_short_12: CW7NCLNJFMVS · pith_short_16: CW7NCLNJFMVSPLLQ · pith_short_8: CW7NCLNJ

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/CW7NCLNJFMVSPLLQZI46KBHU5P \
  | 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: 15bed12da92b2b27ad70ca39e504f4ebd98b8ea06c9145b0c836e6167c281240

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5ef7e957e9dfb3cca2f1a0697c58d5730b443b8268ffe6b2ab673ec54a0804a",
    "cross_cats_sorted": [
      "cs.DB",
      "cs.DC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2012-07-18T13:21:10Z",
    "title_canon_sha256": "b7224f700f743d9a00671d700e560b164ecc9a2f2dd1c4e0b1ee767b6febaf1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4371",
    "kind": "arxiv",
    "version": 1
  }
}