Pith Number

pith:5DJLXSFH

pith:2025:5DJLXSFHHBUELXY3667QNQY4WS

not attested not anchored not stored refs pending

Constraint satisfaction problems, compactness and non-measurable sets

Claude Tardif

arxiv:2508.14838 v3 · 2025-08-20 · math.LO · cs.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{5DJLXSFHHBUELXY3667QNQY4WS}

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.

Cited by

1 paper in Pith

Equivalences of promise compactness principles

Receipt and verification

First computed	2026-06-25T01:18:35.259257Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8d2bbc8a7386845df1bf7bf06c31cb4bf7e5ca358a09c777037f9a863db0ddd

Aliases

arxiv: 2508.14838 · arxiv_version: 2508.14838v3 · doi: 10.48550/arxiv.2508.14838 · pith_short_12: 5DJLXSFHHBUE · pith_short_16: 5DJLXSFHHBUELXY3 · pith_short_8: 5DJLXSFH

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/5DJLXSFHHBUELXY3667QNQY4WS \
  | 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: e8d2bbc8a7386845df1bf7bf06c31cb4bf7e5ca358a09c777037f9a863db0ddd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22e8675e0bff0ac8035b66051785a23a73d3029f902ec34036426878a54c24c4",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2025-08-20T16:41:04Z",
    "title_canon_sha256": "23d7c80402a5fa07a3eb521cf1690f22c50e27b321ca5d03098238cca5ce85e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.14838",
    "kind": "arxiv",
    "version": 3
  }
}