Pith Number

pith:Z6LASOPL

pith:1997:Z6LASOPLTN4ADB6GVOZVCA76VH

not attested not anchored not stored refs pending

Coloring ordinals by reals

Sakae Fuchino

arxiv:math/9702209 v1 · 1997-02-26 · 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{Z6LASOPLTN4ADB6GVOZVCA76VH}

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	2026-05-18T01:05:37.176761Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf960939eb9b780187c6abb35103fea9ce3129ca78a63bf6c5c0106a14d97452

Aliases

arxiv: math/9702209 · arxiv_version: math/9702209v1 · doi: 10.48550/arxiv.math/9702209 · pith_short_12: Z6LASOPLTN4A · pith_short_16: Z6LASOPLTN4ADB6G · pith_short_8: Z6LASOPL

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/Z6LASOPLTN4ADB6GVOZVCA76VH \
  | 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: cf960939eb9b780187c6abb35103fea9ce3129ca78a63bf6c5c0106a14d97452

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "166b0aff5e559556d4f2da7e29b736fa434b28ed45d2c761bcb730415332f88e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.LO",
    "submitted_at": "1997-02-26T00:00:00Z",
    "title_canon_sha256": "5bd9d83de21f9ce88451c1b93d3ef413a33b941e1ef59f8d8bd0ee19c6e0e80f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9702209",
    "kind": "arxiv",
    "version": 1
  }
}