Pith Number

pith:SPKDKGDM

pith:2011:SPKDKGDMM7I4JMQD5U57ZK35LE

not attested not anchored not stored refs pending

Bounded forcing axioms and Baumgartner's conjecture

David Aspero, Marcin Sabok, Miguel Angel Mota, Sy-David Friedman

arxiv:1102.2275 v1 · 2011-02-11 · 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{SPKDKGDMM7I4JMQD5U57ZK35LE}

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	2026-05-18T04:28:56.381474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93d435186c67d1c4b203ed3bfcab7d592fbf8f222e5843e3262b3ca8e46f82cb

Aliases

arxiv: 1102.2275 · arxiv_version: 1102.2275v1 · doi: 10.48550/arxiv.1102.2275 · pith_short_12: SPKDKGDMM7I4 · pith_short_16: SPKDKGDMM7I4JMQD · pith_short_8: SPKDKGDM

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/SPKDKGDMM7I4JMQD5U57ZK35LE \
  | 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: 93d435186c67d1c4b203ed3bfcab7d592fbf8f222e5843e3262b3ca8e46f82cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3314938ff6d6019a5c4f38a6941e9c6a70b0c93004d6c487e02232ed2ff71c1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2011-02-11T03:50:13Z",
    "title_canon_sha256": "0dec7791f9f595f474a744dbdac53d7b6e0b48105592dc0f224a04070f9c29c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.2275",
    "kind": "arxiv",
    "version": 1
  }
}