Pith Number

pith:PSY24EUF

pith:2013:PSY24EUFUXGJGSIEGFII5CBH65

not attested not anchored not stored refs pending

Backdoors to Abduction

Andreas Pfandler, Stefan R\"ummele, Stefan Szeider

arxiv:1304.5961 v1 · 2013-04-22 · cs.AI · cs.CC · 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{PSY24EUFUXGJGSIEGFII5CBH65}

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	2026-05-18T03:27:23.668139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cb1ae1285a5cc93490431508e8827f776e23ff6acbbe521fc9d44cafafba8fc

Aliases

arxiv: 1304.5961 · arxiv_version: 1304.5961v1 · doi: 10.48550/arxiv.1304.5961 · pith_short_12: PSY24EUFUXGJ · pith_short_16: PSY24EUFUXGJGSIE · pith_short_8: PSY24EUF

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/PSY24EUFUXGJGSIEGFII5CBH65 \
  | 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: 7cb1ae1285a5cc93490431508e8827f776e23ff6acbbe521fc9d44cafafba8fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63c260a7586c89d5f545fa28cdd145bce9de91f11a9e97300bb2ed0329726bd2",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2013-04-22T14:23:11Z",
    "title_canon_sha256": "e125b2111f6366d2af364c3ea48d722305a23d93488d726710990eb73fa62ffe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.5961",
    "kind": "arxiv",
    "version": 1
  }
}