Pith Number

pith:YYRFVWOY

pith:1994:YYRFVWOYIDNZFHRV7G7KPA6S6J

not attested not anchored not stored refs pending

More on the cut and choose game

Jind\v{r}ich Zapletal

arxiv:math/9403203 v1 · 1994-03-10 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YYRFVWOYIDNZFHRV7G7KPA6S6J}

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	2026-05-18T01:05:51.613896Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6225ad9d840db929e35f9bea783d2f2404defaaddd694de279e0b5e71a17e72

Aliases

arxiv: math/9403203 · arxiv_version: math/9403203v1 · doi: 10.48550/arxiv.math/9403203 · pith_short_12: YYRFVWOYIDNZ · pith_short_16: YYRFVWOYIDNZFHRV · pith_short_8: YYRFVWOY

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/YYRFVWOYIDNZFHRV7G7KPA6S6J \
  | 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: c6225ad9d840db929e35f9bea783d2f2404defaaddd694de279e0b5e71a17e72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a895e50e3253c08a279f1bef253be9251d66b184c23ee0495d04514e9ccecf3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.LO",
    "submitted_at": "1994-03-10T00:00:00Z",
    "title_canon_sha256": "6058b9dfe71e38f81bdff0fce56144bf691989a50ec4dc721936fd46ed4f13da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9403203",
    "kind": "arxiv",
    "version": 1
  }
}