Pith Number

pith:63YYQG2C

pith:2015:63YYQG2CJKSQZVGW2QSTTXQ4TW

not attested not anchored not stored refs pending

When can splits be drawn in the plane?

Andreas Spillner, David Bryant, Monika Balvo\v{c}i\=ut\.e

arxiv:1509.06104 v1 · 2015-09-21 · q-bio.PE · 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{63YYQG2CJKSQZVGW2QSTTXQ4TW}

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	2026-05-18T01:32:35.812055Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6f1881b424aa50cd4d6d42539de1c9d91b75e8997cbdc0a37193c447c5d9547

Aliases

arxiv: 1509.06104 · arxiv_version: 1509.06104v1 · doi: 10.48550/arxiv.1509.06104 · pith_short_12: 63YYQG2CJKSQ · pith_short_16: 63YYQG2CJKSQZVGW · pith_short_8: 63YYQG2C

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/63YYQG2CJKSQZVGW2QSTTXQ4TW \
  | 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: f6f1881b424aa50cd4d6d42539de1c9d91b75e8997cbdc0a37193c447c5d9547

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8b6e66cf5224a7fe07210891915ba8aa61775d2d6b2aa1eafcbd2a8b8da8d4b",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2015-09-21T03:42:24Z",
    "title_canon_sha256": "b31747968f707a293592a883ac40772b32c02194512505f947b04f88e1f6a90e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.06104",
    "kind": "arxiv",
    "version": 1
  }
}