Pith Number

pith:7G5RMQUB

pith:2015:7G5RMQUBWGDWXNLRYA2QLHJ6SX

not attested not anchored not stored refs pending

Geodesic Spanners for Points on a Polyhedral Terrain

Mark de Berg, Mohammad Ali Abam, Mohammad Javad Rezaei Seraji

arxiv:1511.01612 v1 · 2015-11-05 · 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{7G5RMQUBWGDWXNLRYA2QLHJ6SX}

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	2026-05-18T01:27:45.099463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9bb164281b1876bb571c035059d3e95da3dba7f46fba5234d97ed886db02835

Aliases

arxiv: 1511.01612 · arxiv_version: 1511.01612v1 · doi: 10.48550/arxiv.1511.01612 · pith_short_12: 7G5RMQUBWGDW · pith_short_16: 7G5RMQUBWGDWXNLR · pith_short_8: 7G5RMQUB

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/7G5RMQUBWGDWXNLRYA2QLHJ6SX \
  | 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: f9bb164281b1876bb571c035059d3e95da3dba7f46fba5234d97ed886db02835

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e73c2072aeca4b11d6906c087551c684a6dc7ffb429402c0c191e42eac79486c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2015-11-05T05:25:15Z",
    "title_canon_sha256": "842c8ba315a898c29b0957d4f010ce5ec584c190286c337b5c047398a080ba1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.01612",
    "kind": "arxiv",
    "version": 1
  }
}