Pith Number

pith:CFIPFZ4N

pith:2018:CFIPFZ4NOU7DXVQPL3QDOTGECG

not attested not anchored not stored refs pending

On the lattice point covering problem in dimension 2

Fei Xue

arxiv:1810.03555 v1 · 2018-10-08 · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CFIPFZ4NOU7DXVQPL3QDOTGECG}

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	2026-05-18T00:03:50.927495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1150f2e78d753e3bd60f5ee0374cc411871fbbde5888b174e0688675457c8ffb

Aliases

arxiv: 1810.03555 · arxiv_version: 1810.03555v1 · doi: 10.48550/arxiv.1810.03555 · pith_short_12: CFIPFZ4NOU7D · pith_short_16: CFIPFZ4NOU7DXVQP · pith_short_8: CFIPFZ4N

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/CFIPFZ4NOU7DXVQPL3QDOTGECG \
  | 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: 1150f2e78d753e3bd60f5ee0374cc411871fbbde5888b174e0688675457c8ffb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5c369a9e8a38aa2657309cef0c991fb5150413d85220a0938855090b0048a7f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2018-10-08T16:13:01Z",
    "title_canon_sha256": "b7ae5ef95310aecaf0f908195ed16e613b9193a7f0ae3e5c26b88709a756f816"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.03555",
    "kind": "arxiv",
    "version": 1
  }
}