Pith Number

pith:KW465ZRW

pith:2015:KW465ZRWAHQJ2YKVZCIRQKAQSF

not attested not anchored not stored refs pending

Track Layouts, Layered Path Decompositions, and Leveled Planarity

David Eppstein, David R. Wood, Michael J. Bannister, Vida Dujmovi\'c, William E. Devanny

arxiv:1506.09145 v2 · 2015-06-30 · math.CO · 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{KW465ZRWAHQJ2YKVZCIRQKAQSF}

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	2026-05-17T23:49:06.613033Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55b9eee63601e09d6155c891182810914aa669b46a8903c8748e96c2179460ed

Aliases

arxiv: 1506.09145 · arxiv_version: 1506.09145v2 · doi: 10.48550/arxiv.1506.09145 · pith_short_12: KW465ZRWAHQJ · pith_short_16: KW465ZRWAHQJ2YKV · pith_short_8: KW465ZRW

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/KW465ZRWAHQJ2YKVZCIRQKAQSF \
  | 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: 55b9eee63601e09d6155c891182810914aa669b46a8903c8748e96c2179460ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7612a3012d91af2282507ba326349e8c133c7fa34aa692c2822dcc7459c8986a",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-06-30T16:20:54Z",
    "title_canon_sha256": "4d4f78676fbec4eeb677a85cb7bc67dbbf7435b804810e4533d7680b162e1af2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.09145",
    "kind": "arxiv",
    "version": 2
  }
}