Pith Number

pith:B3K4XNGE

pith:2016:B3K4XNGEJG27PBOASCOTRW4UXV

not attested not anchored not stored refs pending

Solving QBF by Abstraction

Jesko Hecking-Harbusch (Saarland University), Leander Tentrup (Saarland University)

arxiv:1604.06752 v2 · 2016-04-22 · 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{B3K4XNGEJG27PBOASCOTRW4UXV}

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	2026-05-18T00:06:12.668190Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ed5cbb4c449b5f785c0909d38db94bd4039d8fe8d7a19e565d4dab8daf04cfa

Aliases

arxiv: 1604.06752 · arxiv_version: 1604.06752v2 · doi: 10.48550/arxiv.1604.06752 · pith_short_12: B3K4XNGEJG27 · pith_short_16: B3K4XNGEJG27PBOA · pith_short_8: B3K4XNGE

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/B3K4XNGEJG27PBOASCOTRW4UXV \
  | 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: 0ed5cbb4c449b5f785c0909d38db94bd4039d8fe8d7a19e565d4dab8daf04cfa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3576a40e227adb6a9fafee5c729b4297dbb12260e118a0872024bf5d03e62e9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2016-04-22T17:06:55Z",
    "title_canon_sha256": "296efd41f2e88cefb4d53609732da83b88df97dac517fa9e455ecf6047202915"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.06752",
    "kind": "arxiv",
    "version": 2
  }
}