Pith Number

pith:HTCYWPCX

pith:2014:HTCYWPCXACSQR5W3PT3CWFRCME

not attested not anchored not stored refs pending

The Offset Filtration of Convex Objects

Dan Halperin, Doron Shaharabani, Michael Kerber

arxiv:1407.6132 v2 · 2014-07-23 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HTCYWPCXACSQR5W3PT3CWFRCME}

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	2026-05-18T02:28:53.936713Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3cc58b3c5700a508f6db7cf62b162261085df2c99da92e216e158dc711013d76

Aliases

arxiv: 1407.6132 · arxiv_version: 1407.6132v2 · doi: 10.48550/arxiv.1407.6132 · pith_short_12: HTCYWPCXACSQ · pith_short_16: HTCYWPCXACSQR5W3 · pith_short_8: HTCYWPCX

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/HTCYWPCXACSQR5W3PT3CWFRCME \
  | 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: 3cc58b3c5700a508f6db7cf62b162261085df2c99da92e216e158dc711013d76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c58ab8cba25d44962ce3f5bc41bbeb727b32ea8e0eb199aac734f2f47ac0a0d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2014-07-23T08:30:02Z",
    "title_canon_sha256": "67587524c56561f856905d333dd073e26d248215094d31f7578f9199b014e50a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.6132",
    "kind": "arxiv",
    "version": 2
  }
}