Pith Number

pith:SC5XBHT6

pith:2019:SC5XBHT6MZUPZYUXDADIOAZAQR

not attested not anchored not stored refs pending

On first-order expressibility of satisfiability in submodels

Denis I. Saveliev

arxiv:1903.04993 v3 · 2019-03-12 · 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{SC5XBHT6MZUPZYUXDADIOAZAQR}

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	2026-05-17T23:40:11.138118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90bb709e7e6668fce29718068703208457bdccbf80fcd70eceedbd555cb795ec

Aliases

arxiv: 1903.04993 · arxiv_version: 1903.04993v3 · doi: 10.48550/arxiv.1903.04993 · pith_short_12: SC5XBHT6MZUP · pith_short_16: SC5XBHT6MZUPZYUX · pith_short_8: SC5XBHT6

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/SC5XBHT6MZUPZYUXDADIOAZAQR \
  | 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: 90bb709e7e6668fce29718068703208457bdccbf80fcd70eceedbd555cb795ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8a8a1c833f751fe2d5b5ffed261b392d21d6bfe2e0751e1779655f7c4ebdd98",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2019-03-12T15:25:19Z",
    "title_canon_sha256": "a0078ac143e090f0cba5655370ad70249d5ecee92fb8fd5f0d34c8a4eff41148"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.04993",
    "kind": "arxiv",
    "version": 3
  }
}