Pith Number

pith:5NSLF7MA

pith:2022:5NSLF7MAEOW3NNGNZ2UPFRPA24

not attested not anchored not stored refs pending

Game semantics of universes

Norihiro Yamada

arxiv:2203.13069 v1 · 2022-03-24 · math.LO · cs.LO · 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{5NSLF7MAEOW3NNGNZ2UPFRPA24}

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	2026-07-05T04:08:20.241391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb64b2fd8023adb6b4cdcea8f2c5e0d70454d6acfc1a023ea847dbdf64cf2cca

Aliases

arxiv: 2203.13069 · arxiv_version: 2203.13069v1 · doi: 10.48550/arxiv.2203.13069 · pith_short_12: 5NSLF7MAEOW3 · pith_short_16: 5NSLF7MAEOW3NNGN · pith_short_8: 5NSLF7MA

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/5NSLF7MAEOW3NNGNZ2UPFRPA24 \
  | 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: eb64b2fd8023adb6b4cdcea8f2c5e0d70454d6acfc1a023ea847dbdf64cf2cca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "245d8ea2094a37e2fe4bf9a215c5dba1e91bc498c2016d5a01d9a7809d442138",
    "cross_cats_sorted": [
      "cs.LO",
      "math.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2022-03-24T13:47:45Z",
    "title_canon_sha256": "2addb1b657ff0cc004c3de501056bfad575158ea1af641efe2b4671a81529dbc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.13069",
    "kind": "arxiv",
    "version": 1
  }
}