Pith Number

pith:VXAMJ6BY

pith:2012:VXAMJ6BYPSCSKOIUJFCCFRTHZR

not attested not anchored not stored refs pending

Non-crossing Connectors in the Plane

Jan Kratochv\'il, Torsten Ueckerdt

arxiv:1201.0917 v1 · 2012-01-04 · cs.CG · cs.DM · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VXAMJ6BYPSCSKOIUJFCCFRTHZR}

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	2026-05-18T04:05:15.484772Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

adc0c4f8387c85253914494422c667cc5f8a37977755c4b846d4819349c7ad92

Aliases

arxiv: 1201.0917 · arxiv_version: 1201.0917v1 · doi: 10.48550/arxiv.1201.0917 · pith_short_12: VXAMJ6BYPSCS · pith_short_16: VXAMJ6BYPSCSKOIU · pith_short_8: VXAMJ6BY

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/VXAMJ6BYPSCSKOIUJFCCFRTHZR \
  | 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: adc0c4f8387c85253914494422c667cc5f8a37977755c4b846d4819349c7ad92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fd7852b2b6efc9f222ce4de89917f022c9f5e057f6d44749648b0cc3774fe7f",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2012-01-04T15:25:22Z",
    "title_canon_sha256": "49c07ab07a9dc67293c82a100e929765cd34aeaa28e3e63c3b6584e6b9e9b972"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.0917",
    "kind": "arxiv",
    "version": 1
  }
}