Pith Number

pith:BL4LJWXF

pith:2011:BL4LJWXF3B5VSESOOGO2JX3KHO

not attested not anchored not stored refs pending

SPPAM - Statistical PreProcessing AlgorithM

In\^es Dutra, Tiago Silva

arxiv:1103.2342 v1 · 2011-03-11 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BL4LJWXF3B5VSESOOGO2JX3KHO}

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	2026-05-18T04:26:55.800333Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0af8b4dae5d87b59124e719da4df6a3ba217c09d724fa7acb0a8999565d23879

Aliases

arxiv: 1103.2342 · arxiv_version: 1103.2342v1 · doi: 10.48550/arxiv.1103.2342 · pith_short_12: BL4LJWXF3B5V · pith_short_16: BL4LJWXF3B5VSESO · pith_short_8: BL4LJWXF

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/BL4LJWXF3B5VSESOOGO2JX3KHO \
  | 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: 0af8b4dae5d87b59124e719da4df6a3ba217c09d724fa7acb0a8999565d23879

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13ea7744548b7a2a0e3b1185339f84651aca4376c20675eb93536a7548cb5fc8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2011-03-11T18:58:40Z",
    "title_canon_sha256": "ac2c0f87247a2b0c001c328191bcfee625066ad988d7322ab3ea3971b345b6d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.2342",
    "kind": "arxiv",
    "version": 1
  }
}