Pith Number

pith:4ABL6UVK

pith:2019:4ABL6UVKTJAJWPUVODOP5UGJER

not attested not anchored not stored refs pending

Unfolding Polyhedra

Joseph O'Rourke

arxiv:1908.07152 v1 · 2019-08-13 · 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{4ABL6UVKTJAJWPUVODOP5UGJER}

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	2026-07-04T23:58:31.468217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e002bf52aa9a409b3e9570dcfed0c92463aea79c612a253a52ef0f7fd82368f2

Aliases

arxiv: 1908.07152 · arxiv_version: 1908.07152v1 · doi: 10.48550/arxiv.1908.07152 · pith_short_12: 4ABL6UVKTJAJ · pith_short_16: 4ABL6UVKTJAJWPUV · pith_short_8: 4ABL6UVK

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/4ABL6UVKTJAJWPUVODOP5UGJER \
  | 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: e002bf52aa9a409b3e9570dcfed0c92463aea79c612a253a52ef0f7fd82368f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64fd3fcbcd9a670bf9a6adf639e1bffb8a00a46851dcc5e4dd10313fed11fc92",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2019-08-13T13:49:12Z",
    "title_canon_sha256": "dad834e6eb85533fbe1f7ce779dc4909f9bba5c6a6a2b53d8a285771b0c3a1ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.07152",
    "kind": "arxiv",
    "version": 1
  }
}