Pith Number

pith:U76YV6KG

pith:2014:U76YV6KGZI626OLAOSISN26WYI

not attested not anchored not stored refs pending

Pseudofinite structures and simplicity

Charles Steinhorn, Dario Garcia, Dugald Macpherson

arxiv:1409.8635 v1 · 2014-09-30 · 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{U76YV6KGZI626OLAOSISN26WYI}

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	2026-05-18T02:41:24.030457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7fd8af946ca3daf3960749126ebd6c236a0c5a0984fdddf7111e4bf82265a4b

Aliases

arxiv: 1409.8635 · arxiv_version: 1409.8635v1 · doi: 10.48550/arxiv.1409.8635 · pith_short_12: U76YV6KGZI62 · pith_short_16: U76YV6KGZI626OLA · pith_short_8: U76YV6KG

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/U76YV6KGZI626OLAOSISN26WYI \
  | 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: a7fd8af946ca3daf3960749126ebd6c236a0c5a0984fdddf7111e4bf82265a4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d90a76bbfb21fa91c1b2b8a57631ad0592fed5c641dea022f87522b919a845b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2014-09-30T17:35:28Z",
    "title_canon_sha256": "3e3eda9e29f14e4ce79068851cc3421a6d48180114caa7d9161ff95207097345"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.8635",
    "kind": "arxiv",
    "version": 1
  }
}