Pith Number

pith:EQ4Z4UYG

pith:1995:EQ4Z4UYGZIABOCF75DNU6AFQPV

not attested not anchored not stored refs pending

Filter games and combinatorial properties of winning strategies

Claude Laflamme

arxiv:math/9501209 v1 · 1995-01-26 · 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{EQ4Z4UYGZIABOCF75DNU6AFQPV}

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	2026-05-18T01:05:50.664552Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24399e5306ca001708bfe8db4f00b07d7c5404f8d6e080c7d91c50816775930d

Aliases

arxiv: math/9501209 · arxiv_version: math/9501209v1 · doi: 10.48550/arxiv.math/9501209 · pith_short_12: EQ4Z4UYGZIAB · pith_short_16: EQ4Z4UYGZIABOCF7 · pith_short_8: EQ4Z4UYG

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/EQ4Z4UYGZIABOCF75DNU6AFQPV \
  | 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: 24399e5306ca001708bfe8db4f00b07d7c5404f8d6e080c7d91c50816775930d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84de5af6c75346a9bb1567688f5922d6cebde39c6a9a104ef782098c15507d64",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.LO",
    "submitted_at": "1995-01-26T00:00:00Z",
    "title_canon_sha256": "970aa7c8ab508a0f9a3f2c245d56498f54d62a8bcc801b1bf16e04c51a202342"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9501209",
    "kind": "arxiv",
    "version": 1
  }
}