Pith Number

pith:IR62X3QS

pith:2018:IR62X3QSWEQIBJOCEHPMJM6X7U

not attested not anchored not stored refs pending

Quantifier Elimination for Database Driven Verification

Alessandro Gianola, Andrey Rivkin, Diego Calvanese, Marco Montali, Silvio Ghilardi

arxiv:1806.09686 v2 · 2018-06-25 · 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{IR62X3QSWEQIBJOCEHPMJM6X7U}

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	2026-05-17T23:43:17.907511Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

447dabee12b12080a5c221dec4b3d7fd039cb42ebd0e16d28497644e9ad0eb6c

Aliases

arxiv: 1806.09686 · arxiv_version: 1806.09686v2 · doi: 10.48550/arxiv.1806.09686 · pith_short_12: IR62X3QSWEQI · pith_short_16: IR62X3QSWEQIBJOC · pith_short_8: IR62X3QS

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/IR62X3QSWEQIBJOCEHPMJM6X7U \
  | 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: 447dabee12b12080a5c221dec4b3d7fd039cb42ebd0e16d28497644e9ad0eb6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fdcd2a74c472417217647ab5dd55ab74899446ca21b8ec600d0c4cd5babb355",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2018-06-25T19:57:31Z",
    "title_canon_sha256": "5f8864372a5a94359b4826f242f09d739d88d6b3f94928b0a0e63fa917624b21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.09686",
    "kind": "arxiv",
    "version": 2
  }
}