Pith Number

pith:BKZLLD4D

pith:2015:BKZLLD4DLXVLWVBSU6WJHL6SKP

not attested not anchored not stored refs pending

On the structure of Schnyder woods on orientable surfaces

Benjamin L\'ev\^eque, Daniel Gon\c{c}alves, Kolja Knauer

arxiv:1501.05475 v2 · 2015-01-22 · cs.DM · cs.CG · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BKZLLD4DLXVLWVBSU6WJHL6SKP}

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	2026-05-18T01:11:38.790768Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ab2b58f835deabb5432a7ac93afd253fd85384f60467f02073ca222d9e4315f

Aliases

arxiv: 1501.05475 · arxiv_version: 1501.05475v2 · doi: 10.48550/arxiv.1501.05475 · pith_short_12: BKZLLD4DLXVL · pith_short_16: BKZLLD4DLXVLWVBS · pith_short_8: BKZLLD4D

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/BKZLLD4DLXVLWVBSU6WJHL6SKP \
  | 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: 0ab2b58f835deabb5432a7ac93afd253fd85384f60467f02073ca222d9e4315f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6dd5f8270c8bae8ac989a5fd67668298419cf4980273d14885d38f433481f7e",
    "cross_cats_sorted": [
      "cs.CG",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2015-01-22T12:21:23Z",
    "title_canon_sha256": "a2f0960c33f98eadb9ee7accfabaa6fcb22ce3a7217b53e292362e206bcf24f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.05475",
    "kind": "arxiv",
    "version": 2
  }
}