Pith Number

pith:OJB4YKJ2

pith:2012:OJB4YKJ2Q2JR2HOJHWY6IOUEL2

not attested not anchored not stored refs pending

Tree Projections and Structural Decomposition Methods: Minimality and Game-Theoretic Characterization

Francesco Scarcello, Gianluigi Greco

arxiv:1212.2314 v1 · 2012-12-11 · cs.DM · cs.AI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OJB4YKJ2Q2JR2HOJHWY6IOUEL2}

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	2026-05-18T03:38:45.324976Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7243cc293a86931d1dc93db1e43a845ea153bc618e0732373c85220e1fcbc77b

Aliases

arxiv: 1212.2314 · arxiv_version: 1212.2314v1 · doi: 10.48550/arxiv.1212.2314 · pith_short_12: OJB4YKJ2Q2JR · pith_short_16: OJB4YKJ2Q2JR2HOJ · pith_short_8: OJB4YKJ2

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/OJB4YKJ2Q2JR2HOJHWY6IOUEL2 \
  | 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: 7243cc293a86931d1dc93db1e43a845ea153bc618e0732373c85220e1fcbc77b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8795efc9858585341682a9df57aee1ec26da898d1c852650fd05dc021bb5afba",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2012-12-11T07:02:31Z",
    "title_canon_sha256": "050af01203fbd1577e08d8ca18d9c94a5f2c4573369883e8eabce4731c32d53f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.2314",
    "kind": "arxiv",
    "version": 1
  }
}