Pith Number

pith:4C4ML5HI

pith:2013:4C4ML5HIDWQCPXTIEWDQQTQEUH

not attested not anchored not stored refs pending

A Local Active Contour Model for Image Segmentation with Intensity Inhomogeneity

David Zhang, Kaihua Zhang, Kin-man Lam, Lei Zhang

arxiv:1305.7053 v1 · 2013-05-30 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4C4ML5HIDWQCPXTIEWDQQTQEUH}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:22:16.518981Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0b8c5f4e81da027de682587084e04a1f3241850adf4bf5984e0b433023ad326

Aliases

arxiv: 1305.7053 · arxiv_version: 1305.7053v1 · doi: 10.48550/arxiv.1305.7053 · pith_short_12: 4C4ML5HIDWQC · pith_short_16: 4C4ML5HIDWQCPXTI · pith_short_8: 4C4ML5HI

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/4C4ML5HIDWQCPXTIEWDQQTQEUH \
  | 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: e0b8c5f4e81da027de682587084e04a1f3241850adf4bf5984e0b433023ad326

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be055b8c772edab52c202b628fe2b4612ce3782c34786a9cd1a38fd2dad9a1ef",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-05-30T10:14:14Z",
    "title_canon_sha256": "9e184ebdea5a9277d57263f78d16b56ad1bce6394f02c639c2c735ffe40b528b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.7053",
    "kind": "arxiv",
    "version": 1
  }
}