Pith Number

pith:QN7TM6EV

pith:2012:QN7TM6EVDPLNSMHT6LAZ3KAPDJ

not attested not anchored not stored refs pending

Solving the LPN problem in cube-root time

Urs Wagner

arxiv:1201.4725 v1 · 2012-01-23 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QN7TM6EVDPLNSMHT6LAZ3KAPDJ}

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	2026-05-18T04:04:05.344782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

837f3678951bd6d930f3f2c19da80f1a46d9e3d42a92c27e4bd5b5737fe864ad

Aliases

arxiv: 1201.4725 · arxiv_version: 1201.4725v1 · doi: 10.48550/arxiv.1201.4725 · pith_short_12: QN7TM6EVDPLN · pith_short_16: QN7TM6EVDPLNSMHT · pith_short_8: QN7TM6EV

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/QN7TM6EVDPLNSMHT6LAZ3KAPDJ \
  | 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: 837f3678951bd6d930f3f2c19da80f1a46d9e3d42a92c27e4bd5b5737fe864ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68675cd280da061fa61507626a11eb4d9c7a696dec56c930f2e0f87a387d17bd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2012-01-23T14:33:10Z",
    "title_canon_sha256": "5715784029a9e66e15c1ddf7bef3d010624d83955e653a411a274243e5ef8b78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4725",
    "kind": "arxiv",
    "version": 1
  }
}