Pith Number

pith:AOOL7A4F

pith:2022:AOOL7A4FV7PYLVQDIHVFG4OHYX

not attested not anchored not stored refs pending

A Binary Characterization Method for Shape Convexity and Applications

Jinfeng Chen, Shousheng Luo, Xue-Cheng Tai, Yunhai Xiao

arxiv:2203.11395 v2 · 2022-03-22 · cs.CV · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AOOL7A4FV7PYLVQDIHVFG4OHYX}

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	2026-07-05T05:02:59.319388Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

039cbf8385afdf85d60341ea5371c7c5c90903f3605a7437dcce6030d4333c65

Aliases

arxiv: 2203.11395 · arxiv_version: 2203.11395v2 · doi: 10.48550/arxiv.2203.11395 · pith_short_12: AOOL7A4FV7PY · pith_short_16: AOOL7A4FV7PYLVQD · pith_short_8: AOOL7A4F

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/AOOL7A4FV7PYLVQDIHVFG4OHYX \
  | 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: 039cbf8385afdf85d60341ea5371c7c5c90903f3605a7437dcce6030d4333c65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13f5eaf332af01c9f057b545fc2958f5a7cbc314ed22c260aa62b39b6e23c9d8",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-03-22T00:05:19Z",
    "title_canon_sha256": "2c366c018d012cc07c0d1aa185eaea767aeca3b26231588fdc4b8450d98cd6ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.11395",
    "kind": "arxiv",
    "version": 2
  }
}