Pith Number

pith:N6S66Y6I

pith:1994:N6S66Y6IRDNTE6WCJ3IKXEARPC

not attested not anchored not stored refs pending

Possible pcf algebras

Saharon Shelah, Thomas Jech

arxiv:math/9412208 v1 · 1994-12-03 · 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{N6S66Y6IRDNTE6WCJ3IKXEARPC}

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	2026-05-18T01:05:50.775250Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fa5ef63c888db327ac24ed0ab901178ad2e186b0a896fbd4fbb872be4408c41

Aliases

arxiv: math/9412208 · arxiv_version: math/9412208v1 · doi: 10.48550/arxiv.math/9412208 · pith_short_12: N6S66Y6IRDNT · pith_short_16: N6S66Y6IRDNTE6WC · pith_short_8: N6S66Y6I

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/N6S66Y6IRDNTE6WCJ3IKXEARPC \
  | 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: 6fa5ef63c888db327ac24ed0ab901178ad2e186b0a896fbd4fbb872be4408c41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d06d70cd5498f251a1ab7b23ae80bc34f125ba1a425cc78f9bbde1e9bb0b319a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.LO",
    "submitted_at": "1994-12-03T00:00:00Z",
    "title_canon_sha256": "9e2bda60bd5237625a312e4c489fd1f0717fa238bbb0c0d8c9c33f7cb4ecd63c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9412208",
    "kind": "arxiv",
    "version": 1
  }
}