Pith Number

pith:WLDNGGEQ

pith:2011:WLDNGGEQ4ZSDYPVJLIVAR6ELZ3

not attested not anchored not stored refs pending

A Novel Image Segmentation Enhancement Technique based on Active Contour and Topological Alignments

Ashraf A. Aly, Nazar Zaki, Safaai Bin Deris

arxiv:1106.0371 v1 · 2011-06-02 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WLDNGGEQ4ZSDYPVJLIVAR6ELZ3}

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	2026-05-18T04:20:50.552421Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2c6d31890e6643c3ea95a2a08f88bcec9df64d2630ebe051116c3aecb84b0eb

Aliases

arxiv: 1106.0371 · arxiv_version: 1106.0371v1 · doi: 10.48550/arxiv.1106.0371 · pith_short_12: WLDNGGEQ4ZSD · pith_short_16: WLDNGGEQ4ZSDYPVJ · pith_short_8: WLDNGGEQ

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/WLDNGGEQ4ZSDYPVJLIVAR6ELZ3 \
  | 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: b2c6d31890e6643c3ea95a2a08f88bcec9df64d2630ebe051116c3aecb84b0eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8bfaa97b3207f6701ca3e14b011a78deed3bd8b886ee8fba8401ef7377767398",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2011-06-02T06:31:13Z",
    "title_canon_sha256": "3319f05adfba0d009a2c7df57e4ef5e4beb748fb31ecef9985fda07181b016f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.0371",
    "kind": "arxiv",
    "version": 1
  }
}