Pith Number

pith:OLUTPISL

pith:2012:OLUTPISLMB4WF23THI3QQIP73S

not attested not anchored not stored refs pending

Active Contour with A Tangential Component

Junyan Wang, Kap Luk Chan

arxiv:1204.6458 v1 · 2012-04-29 · 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{OLUTPISLMB4WF23THI3QQIP73S}

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	2026-05-18T03:56:45.494777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72e937a24b607962eb733a370821ffdc88562b4e4174bac0e24cd7cd009619de

Aliases

arxiv: 1204.6458 · arxiv_version: 1204.6458v1 · doi: 10.48550/arxiv.1204.6458 · pith_short_12: OLUTPISLMB4W · pith_short_16: OLUTPISLMB4WF23T · pith_short_8: OLUTPISL

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/OLUTPISLMB4WF23THI3QQIP73S \
  | 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: 72e937a24b607962eb733a370821ffdc88562b4e4174bac0e24cd7cd009619de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e12eab40cc9f5e5207c1bdc93a065a20f408f83248af5a37d7909fa418ffd367",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2012-04-29T07:17:28Z",
    "title_canon_sha256": "2ca601af16856e48e8b0ed1e84db7d7c974a65188ef432abd9d4a9c660cafde2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.6458",
    "kind": "arxiv",
    "version": 1
  }
}