Pith Number

pith:Z6RUTCTI

pith:2002:Z6RUTCTIIVJSY4K2QUX2HCE36Q

not attested not anchored not stored refs pending

Cofinality of the nonstationary ideal

Andrzej Ros{\l}anowski, Pierre Matet, Saharon Shelah

arxiv:math/0210087 v1 · 2002-10-06 · 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{Z6RUTCTIIVJSY4K2QUX2HCE36Q}

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	2026-05-18T03:37:27.247980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfa3498a6845532c715a852fa3889bf41dbedcc4b7e17d3d9d430c0ceedede06

Aliases

arxiv: math/0210087 · arxiv_version: math/0210087v1 · doi: 10.48550/arxiv.math/0210087 · pith_short_12: Z6RUTCTIIVJS · pith_short_16: Z6RUTCTIIVJSY4K2 · pith_short_8: Z6RUTCTI

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/Z6RUTCTIIVJSY4K2QUX2HCE36Q \
  | 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: cfa3498a6845532c715a852fa3889bf41dbedcc4b7e17d3d9d430c0ceedede06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "815d30a2db06718f8e95f44262bc21ddc08e8614619a09c9aabb468ae283cc0b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.LO",
    "submitted_at": "2002-10-06T03:05:18Z",
    "title_canon_sha256": "418c0343d294df4df64e6f0ece913c1a0701ee48d96dead15c959a99cf8395ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0210087",
    "kind": "arxiv",
    "version": 1
  }
}