Pith Number

pith:KFC3JOC6

pith:2015:KFC3JOC64XGMPYPU5XIWEGAQYG

not attested not anchored not stored refs pending

Balanced Islands in Two Colored Point Sets in the Plane

Birgit Vogtenhuber, David Flores-Pe\~naloza, Jorge Urrutia, Jose M. D{\i}az-B\'a\~nez, Nieves Atienza, Oswin Aichholzer, Pablo Perez-Lantero, Ruy Fabila-Monroy

arxiv:1510.01819 v3 · 2015-10-07 · 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{KFC3JOC64XGMPYPU5XIWEGAQYG}

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	2026-05-18T00:14:01.566685Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5145b4b85ee5ccc7e1f4edd1621810c1b5799a7480f0f7ac5c428c67b69903a9

Aliases

arxiv: 1510.01819 · arxiv_version: 1510.01819v3 · doi: 10.48550/arxiv.1510.01819 · pith_short_12: KFC3JOC64XGM · pith_short_16: KFC3JOC64XGMPYPU · pith_short_8: KFC3JOC6

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/KFC3JOC64XGMPYPU5XIWEGAQYG \
  | 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: 5145b4b85ee5ccc7e1f4edd1621810c1b5799a7480f0f7ac5c428c67b69903a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5576e37732263e2d3bff2abe0f46ddbfbb5d6b5bacd73e639f7a22534296095",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2015-10-07T04:14:36Z",
    "title_canon_sha256": "b2bcd170f2ffb4ecb358ef4c09a2a226f8af0024f5a102be538626a25bd3fcf8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.01819",
    "kind": "arxiv",
    "version": 3
  }
}