Pith Number

pith:Y37SNR45

pith:2017:Y37SNR45GKZM6E7BAMYJDFXPZB

not attested not anchored not stored refs pending

A hierarchy of Ramsey-like cardinals

Peter Holy, Philipp Schlicht

arxiv:1710.10043 v1 · 2017-10-27 · 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{Y37SNR45GKZM6E7BAMYJDFXPZB}

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	2026-05-18T00:31:54.893958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6ff26c79d32b2cf13e103309196efc87bf843da1f3508535653cf8c6c690d53

Aliases

arxiv: 1710.10043 · arxiv_version: 1710.10043v1 · doi: 10.48550/arxiv.1710.10043 · pith_short_12: Y37SNR45GKZM · pith_short_16: Y37SNR45GKZM6E7B · pith_short_8: Y37SNR45

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/Y37SNR45GKZM6E7BAMYJDFXPZB \
  | 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: c6ff26c79d32b2cf13e103309196efc87bf843da1f3508535653cf8c6c690d53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "138f3457e4d321806898830c1b0b14aff33f2a474a294d72adf1078dbde5a550",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2017-10-27T09:35:15Z",
    "title_canon_sha256": "8bf2bf10500ec656233f265017e38ce025cf0c4452292b6871781d2f6500911c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.10043",
    "kind": "arxiv",
    "version": 1
  }
}