Pith Number

pith:UGUMW33T

pith:2013:UGUMW33TVUWBX3T244I3JKHZNL

not attested not anchored not stored refs pending

Geometric graphs on convex point sets

Abhijeet Khopkar, Sathish Govindrajan

arxiv:1312.2185 v1 · 2013-12-08 · 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{UGUMW33TVUWBX3T244I3JKHZNL}

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	2026-05-18T03:05:11.028074Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1a8cb6f73ad2c1bee7ae711b4a8f96ac1402859a4d9c9c9b335c8de26e79040

Aliases

arxiv: 1312.2185 · arxiv_version: 1312.2185v1 · doi: 10.48550/arxiv.1312.2185 · pith_short_12: UGUMW33TVUWB · pith_short_16: UGUMW33TVUWBX3T2 · pith_short_8: UGUMW33T

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/UGUMW33TVUWBX3T244I3JKHZNL \
  | 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: a1a8cb6f73ad2c1bee7ae711b4a8f96ac1402859a4d9c9c9b335c8de26e79040

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04c049a14ab80db2d3db123afe6b6a5142274dd9dcd652bb94a984eefd2e2c0d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2013-12-08T09:31:24Z",
    "title_canon_sha256": "1fba410839043d9e94a62db19015f788d009c1d3882610aefa321a6957f73fc2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.2185",
    "kind": "arxiv",
    "version": 1
  }
}