Pith Number

pith:PWBI2HTE

pith:2019:PWBI2HTEHKBS43ZMZXYBY3JAWQ

not attested not anchored not stored refs pending

Parameterized Algorithms for Book Embedding Problems

Fabrizio Montecchiani, Martin N\"ollenburg, Robert Ganian, Sujoy Bhore

arxiv:1908.08911 v1 · 2019-08-23 · 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{PWBI2HTEHKBS43ZMZXYBY3JAWQ}

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	2026-07-04T23:59:25.164048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d828d1e643a832e6f2ccdf01c6d20b43d1c6ad51da427705343a9195d83e33a

Aliases

arxiv: 1908.08911 · arxiv_version: 1908.08911v1 · doi: 10.48550/arxiv.1908.08911 · pith_short_12: PWBI2HTEHKBS · pith_short_16: PWBI2HTEHKBS43ZM · pith_short_8: PWBI2HTE

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/PWBI2HTEHKBS43ZMZXYBY3JAWQ \
  | 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: 7d828d1e643a832e6f2ccdf01c6d20b43d1c6ad51da427705343a9195d83e33a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "520e473585fc6bd9439e1d12cc3c57d76856fbedf04bee1c6086046b59680670",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-08-23T17:36:13Z",
    "title_canon_sha256": "f12c20fd2716c6b3425866f74891b9e6e3f0828daca2f5f968a1bc5474177356"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08911",
    "kind": "arxiv",
    "version": 1
  }
}