Pith Number

pith:DOONPQDY

pith:2013:DOONPQDYMI6G4DAQ365D2ZWBCF

not attested not anchored not stored refs pending

Computing a Compact Spline Representation of the Medial Axis Transform of a 2D Shape

Bert J\"uttler, Feng Sun, Wenping Wang, Yanshu Zhu, Yi-King Choi

arxiv:1307.0118 v3 · 2013-06-29 · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DOONPQDYMI6G4DAQ365D2ZWBCF}

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	2026-05-18T02:52:12.608385Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b9cd7c078623c6e0c10dfba3d66c11162bc5a69b4c1edfccedf54b6e01ba6e8

Aliases

arxiv: 1307.0118 · arxiv_version: 1307.0118v3 · doi: 10.48550/arxiv.1307.0118 · pith_short_12: DOONPQDYMI6G · pith_short_16: DOONPQDYMI6G4DAQ · pith_short_8: DOONPQDY

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/DOONPQDYMI6G4DAQ365D2ZWBCF \
  | 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: 1b9cd7c078623c6e0c10dfba3d66c11162bc5a69b4c1edfccedf54b6e01ba6e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af0c65641289d56f703205eb0ffb31f606fcb6a0c51e2ab98fd23b1f23342460",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2013-06-29T15:32:23Z",
    "title_canon_sha256": "2bf5cfdf6bb60580b53477d7393b37935ffe0a06c6028a9030c8a9327ea1a14f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.0118",
    "kind": "arxiv",
    "version": 3
  }
}