Pith Number

pith:RQYTYYLX

pith:2015:RQYTYYLX24S4YUOS3LDJC7XEVL

not attested not anchored not stored refs pending

Point sets with many non-crossing matchings

Andrei Asinowski, G\"unter Rote

arxiv:1502.04925 v1 · 2015-02-17 · 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{RQYTYYLX24S4YUOS3LDJC7XEVL}

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	2026-05-18T00:30:22.832874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c313c6177d725cc51d2dac6917ee4aacca969b9ef52966ba8260e045a3371b9

Aliases

arxiv: 1502.04925 · arxiv_version: 1502.04925v1 · doi: 10.48550/arxiv.1502.04925 · pith_short_12: RQYTYYLX24S4 · pith_short_16: RQYTYYLX24S4YUOS · pith_short_8: RQYTYYLX

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/RQYTYYLX24S4YUOS3LDJC7XEVL \
  | 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: 8c313c6177d725cc51d2dac6917ee4aacca969b9ef52966ba8260e045a3371b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d524a1ff2aa12d734054e84321c721d335d85e80f704edaf2529f0ae86fd227",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2015-02-17T15:28:52Z",
    "title_canon_sha256": "badc6b0ecccfaca8b15e0da95535c147e34a060c4bc17779450fc5a0af49e3af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.04925",
    "kind": "arxiv",
    "version": 1
  }
}