Pith Number

pith:UVZWBKXS

pith:2009:UVZWBKXSLM7M4Z2I4LFYF2CUDX

not attested not anchored not stored refs pending

Non-elementary proper forcing

Jakob Kellner

arxiv:0910.2132 v2 · 2009-10-12 · 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{UVZWBKXSLM7M4Z2I4LFYF2CUDX}

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	2026-05-18T01:33:58.967236Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a57360aaf25b3ece6748e2cb82e8541dd427ba36ac394bb5f66e987c83f9cf40

Aliases

arxiv: 0910.2132 · arxiv_version: 0910.2132v2 · doi: 10.48550/arxiv.0910.2132 · pith_short_12: UVZWBKXSLM7M · pith_short_16: UVZWBKXSLM7M4Z2I · pith_short_8: UVZWBKXS

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/UVZWBKXSLM7M4Z2I4LFYF2CUDX \
  | 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: a57360aaf25b3ece6748e2cb82e8541dd427ba36ac394bb5f66e987c83f9cf40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d4844a19e49a43653a6284623c1510577c403d204d4d8a7aaf56a3c10926a07",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2009-10-12T10:31:42Z",
    "title_canon_sha256": "018a67dc5d3e20ca6aba7444f66e5db2ae49e3669421fe258442fdd108a06f06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.2132",
    "kind": "arxiv",
    "version": 2
  }
}