Pith Number

pith:QT2IJO7O

pith:2019:QT2IJO7OTEYR5BSVO222AM2D5W

not attested not anchored not stored refs pending

Pseudo-finite sets, pseudo-o-minimality

Nadav Meir

arxiv:1908.01660 v2 · 2019-08-05 · 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{QT2IJO7OTEYR5BSVO222AM2D5W}

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	2026-07-05T06:50:35.882541Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84f484bbee99311e865576b5a03343ed9a0f1ebc67af35f63eda452b14470b22

Aliases

arxiv: 1908.01660 · arxiv_version: 1908.01660v2 · doi: 10.48550/arxiv.1908.01660 · pith_short_12: QT2IJO7OTEYR · pith_short_16: QT2IJO7OTEYR5BSV · pith_short_8: QT2IJO7O

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/QT2IJO7OTEYR5BSVO222AM2D5W \
  | 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: 84f484bbee99311e865576b5a03343ed9a0f1ebc67af35f63eda452b14470b22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b4ca9c5976e72be37abdff7f769699c5cfa7d3d55ee7f3056b3606ea40abccf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2019-08-05T14:52:19Z",
    "title_canon_sha256": "152ea9bc05b95cacb8b3533cf268b2bdea52ba903c320cdcd2d76a57a5cb080e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.01660",
    "kind": "arxiv",
    "version": 2
  }
}