Pith Number

pith:SBIYOQWT

pith:2008:SBIYOQWTVMOW54UHIJPRGIDQQP

not attested not anchored not stored refs pending

Ramsey-like cardinals

Victoria Gitman

arxiv:0801.4723 v2 · 2008-01-30 · 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{SBIYOQWTVMOW54UHIJPRGIDQQP}

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	2026-05-18T04:23:35.345198Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90518742d3ab1d6ef287425f13207083c9ed8209ce8bb76bc11a815329685cad

Aliases

arxiv: 0801.4723 · arxiv_version: 0801.4723v2 · doi: 10.48550/arxiv.0801.4723 · pith_short_12: SBIYOQWTVMOW · pith_short_16: SBIYOQWTVMOW54UH · pith_short_8: SBIYOQWT

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/SBIYOQWTVMOW54UHIJPRGIDQQP \
  | 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: 90518742d3ab1d6ef287425f13207083c9ed8209ce8bb76bc11a815329685cad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16167f0f7af5643d6ddfaceb76c308850013fad70624b178cab449e7194363b1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2008-01-30T17:32:42Z",
    "title_canon_sha256": "6e490ca5393ef382b5ec127c126a4c2652a46e540c067293069dfe60c34be398"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.4723",
    "kind": "arxiv",
    "version": 2
  }
}