Pith Number

pith:SEZPCON5

pith:2000:SEZPCON5KNQU64FY4DUPNFAHJZ

not attested not anchored not stored refs pending

Measured creatures

Andrzej Roslanowski, Saharon Shelah

arxiv:math/0010070 v3 · 2000-10-07 · math.LO · math.CA · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SEZPCON5KNQU64FY4DUPNFAHJZ}

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	2026-05-18T03:37:27.262404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9132f139bd53614f70b8e0e8f694074e5eb1cd97f629e4a0fd63f909dbf71b02

Aliases

arxiv: math/0010070 · arxiv_version: math/0010070v3 · doi: 10.48550/arxiv.math/0010070 · pith_short_12: SEZPCON5KNQU · pith_short_16: SEZPCON5KNQU64FY · pith_short_8: SEZPCON5

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/SEZPCON5KNQU64FY4DUPNFAHJZ \
  | 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: 9132f139bd53614f70b8e0e8f694074e5eb1cd97f629e4a0fd63f909dbf71b02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea31ca63ab8c5640cf73bdfd8cd9a94b99cf2a18e7a555b0b700d52f08b3173a",
    "cross_cats_sorted": [
      "math.CA",
      "math.GN"
    ],
    "license": "",
    "primary_cat": "math.LO",
    "submitted_at": "2000-10-07T17:12:50Z",
    "title_canon_sha256": "8a99346f2fd05983802c929e1347101278bbc5f6b2f1321b087ab6313b660fd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0010070",
    "kind": "arxiv",
    "version": 3
  }
}