Pith Number

pith:WJXTU75S

pith:2019:WJXTU75SJSCM776IHRJZ2JIYMJ

not attested not anchored not stored refs pending

The Maximum Common Subgraph Problem: A Portfolio Approach

Andrea Marcelli, Giovanni Squillero, Stefano Quer

arxiv:1908.06418 v1 · 2019-08-18 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WJXTU75SJSCM776IHRJZ2JIYMJ}

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	2026-07-05T01:49:35.088071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b26f3a7fb24c84cfffc83c539d251862611566cf65e2e3eccea6c7f8ca9a48ff

Aliases

arxiv: 1908.06418 · arxiv_version: 1908.06418v1 · doi: 10.48550/arxiv.1908.06418 · pith_short_12: WJXTU75SJSCM · pith_short_16: WJXTU75SJSCM776I · pith_short_8: WJXTU75S

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/WJXTU75SJSCM776IHRJZ2JIYMJ \
  | 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: b26f3a7fb24c84cfffc83c539d251862611566cf65e2e3eccea6c7f8ca9a48ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f918bb7ec0b3b9dde17c6a53fb5aa93a7987e6e3e07d593b2cc702d7d1cd173",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-08-18T10:15:59Z",
    "title_canon_sha256": "bb1ac65e5956fe982e81fc7e2eca2804963324ef478e2c6b7649dc1cf9274858"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.06418",
    "kind": "arxiv",
    "version": 1
  }
}