Pith Number

pith:CAR6JPL6

pith:2010:CAR6JPL63WFP7MIROQLGMBPN6D

not attested not anchored not stored refs pending

Drawing Trees with Perfect Angular Resolution and Polynomial Area

Christian A. Duncan, David Eppstein, Martin N\"ollenburg, Michael T. Goodrich, Stephen G. Kobourov

arxiv:1009.0581 v2 · 2010-09-03 · 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{CAR6JPL63WFP7MIROQLGMBPN6D}

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	2026-05-18T01:33:32.916422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1023e4bd7edd8affb11174166605edf0ef511b103ef2d4bee5e77f5492caf101

Aliases

arxiv: 1009.0581 · arxiv_version: 1009.0581v2 · doi: 10.48550/arxiv.1009.0581 · pith_short_12: CAR6JPL63WFP · pith_short_16: CAR6JPL63WFP7MIR · pith_short_8: CAR6JPL6

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/CAR6JPL63WFP7MIROQLGMBPN6D \
  | 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: 1023e4bd7edd8affb11174166605edf0ef511b103ef2d4bee5e77f5492caf101

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8c343b0fc13f9b339961aff8f98c9819fe1297c32b6324b21ac9d69527f2f12",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2010-09-03T04:17:19Z",
    "title_canon_sha256": "d6dea527b82ff4c974da4e02306e303b2cf60fb7b43e5159ccd8f85dcf17db35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.0581",
    "kind": "arxiv",
    "version": 2
  }
}