Pith Number

pith:OA56P7U2

pith:2019:OA56P7U2A6VMUEGCNJ2ITVVLQQ

not attested not anchored not stored refs pending

From Quantified CTL to QBF

Akash Hossain, Francois Laroussinie

arxiv:1906.10005 v1 · 2019-06-24 · 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{OA56P7U2A6VMUEGCNJ2ITVVLQQ}

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	2026-05-17T23:42:35.745582Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

703be7fe9a07aaca10c26a7489d6ab84170684e70f4f63c40670eeee88feaa8f

Aliases

arxiv: 1906.10005 · arxiv_version: 1906.10005v1 · doi: 10.48550/arxiv.1906.10005 · pith_short_12: OA56P7U2A6VM · pith_short_16: OA56P7U2A6VMUEGC · pith_short_8: OA56P7U2

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/OA56P7U2A6VMUEGCNJ2ITVVLQQ \
  | 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: 703be7fe9a07aaca10c26a7489d6ab84170684e70f4f63c40670eeee88feaa8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78b1184d78be0a7da52f752b60039404ac378e0140db361202de656700e7ed1c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2019-06-24T14:58:37Z",
    "title_canon_sha256": "13d1c73a91f58ba90fd1845b83e48350411068c5cbecd5738af390f624a7dd86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.10005",
    "kind": "arxiv",
    "version": 1
  }
}