Pith Number

pith:KU2P7CRT

pith:2016:KU2P7CRTACRLA3HXPAPBSWXG3B

not attested not anchored not stored refs pending

The Image Torque Operator for Contour Processing

Cornelia Ferm\"uller, Morimichi Nishigaki

arxiv:1601.04669 v1 · 2016-01-18 · 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{KU2P7CRTACRLA3HXPAPBSWXG3B}

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	2026-05-18T01:22:44.507014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5534ff8a3300a2b06cf7781e195ae6d87804eb78f6770fbf0cc5558416c862a2

Aliases

arxiv: 1601.04669 · arxiv_version: 1601.04669v1 · doi: 10.48550/arxiv.1601.04669 · pith_short_12: KU2P7CRTACRL · pith_short_16: KU2P7CRTACRLA3HX · pith_short_8: KU2P7CRT

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/KU2P7CRTACRLA3HXPAPBSWXG3B \
  | 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: 5534ff8a3300a2b06cf7781e195ae6d87804eb78f6770fbf0cc5558416c862a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d59411df806d53b464c3c520e9012b91d0b48577494abe868a720e1c21235ed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2016-01-18T19:40:50Z",
    "title_canon_sha256": "d0d488ba5c4fe93bdbf5bb7791096bef954427667168796e8e1d8128d3bf5305"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.04669",
    "kind": "arxiv",
    "version": 1
  }
}