Pith Number

pith:NVWW7S4M

pith:2013:NVWW7S4MU4TFFXKMVLAUPNYAEV

not attested not anchored not stored refs pending

Four Side Distance: A New Fourier Shape Signature

Abdolah Chalechale, Sonya Eini

arxiv:1302.5894 v1 · 2013-02-24 · 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{NVWW7S4MU4TFFXKMVLAUPNYAEV}

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	2026-05-18T03:32:43.263178Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d6d6fcb8ca72652dd4caac147b700255abbd4cace7320921fe9973cfdb269c0

Aliases

arxiv: 1302.5894 · arxiv_version: 1302.5894v1 · doi: 10.48550/arxiv.1302.5894 · pith_short_12: NVWW7S4MU4TF · pith_short_16: NVWW7S4MU4TFFXKM · pith_short_8: NVWW7S4M

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/NVWW7S4MU4TFFXKMVLAUPNYAEV \
  | 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: 6d6d6fcb8ca72652dd4caac147b700255abbd4cace7320921fe9973cfdb269c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20ea9995cee127ff657a55074e2203e12a739c74ee71a97509226b73ba9258b4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-02-24T10:49:39Z",
    "title_canon_sha256": "cecea1cecf2db65bf4677cf64d71a0d33a9b9bbdc460acd91a6b569de727f52c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.5894",
    "kind": "arxiv",
    "version": 1
  }
}