Pith Number

pith:XKKNE7G3

pith:2012:XKKNE7G3EHE7Y3GUG2TQSFQACW

not attested not anchored not stored refs pending

Learning DNF Expressions from Fourier Spectrum

Vitaly Feldman

arxiv:1203.0594 v3 · 2012-03-03 · cs.LG · cs.CC · 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{XKKNE7G3EHE7Y3GUG2TQSFQACW}

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	2026-05-18T02:21:17.309190Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba94d27cdb21c9fc6cd436a709160015a3308cca5786286072d31a715f069cc6

Aliases

arxiv: 1203.0594 · arxiv_version: 1203.0594v3 · doi: 10.48550/arxiv.1203.0594 · pith_short_12: XKKNE7G3EHE7 · pith_short_16: XKKNE7G3EHE7Y3GU · pith_short_8: XKKNE7G3

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/XKKNE7G3EHE7Y3GUG2TQSFQACW \
  | 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: ba94d27cdb21c9fc6cd436a709160015a3308cca5786286072d31a715f069cc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05b58a8f6d82ab77c8e7aaf4a3514da2bd770a60925b8b3d7ce3032e675634e6",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2012-03-03T00:43:08Z",
    "title_canon_sha256": "484ef9ebb7d9606b5940878b9861ed197a8c6fa3bea79cafdc25dddab1401d09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.0594",
    "kind": "arxiv",
    "version": 3
  }
}