Pith Number

pith:N5BBHNWL

pith:2017:N5BBHNWLGLMTM2BE2LR4T2JRDG

not attested not anchored not stored refs pending

On contractible edges in convex decompositions

Eduardo Rivera-Campo, Ferran Hurtado

arxiv:1709.05995 v1 · 2017-09-18 · 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{N5BBHNWLGLMTM2BE2LR4T2JRDG}

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	2026-05-18T00:34:58.536875Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f4213b6cb32d9366824d2e3c9e9311989ec83f882be05f1d259e2dd00c0c07c

Aliases

arxiv: 1709.05995 · arxiv_version: 1709.05995v1 · doi: 10.48550/arxiv.1709.05995 · pith_short_12: N5BBHNWLGLMT · pith_short_16: N5BBHNWLGLMTM2BE · pith_short_8: N5BBHNWL

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/N5BBHNWLGLMTM2BE2LR4T2JRDG \
  | 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: 6f4213b6cb32d9366824d2e3c9e9311989ec83f882be05f1d259e2dd00c0c07c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e098846695ffe1ff06f7148cfe5ad76604053b857baa3c4dd21b908530550ac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-09-18T15:11:47Z",
    "title_canon_sha256": "8b7f98ce3ee185f47d6615b1ca7c1af5b204165810ce8a75fa144ce87b816961"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.05995",
    "kind": "arxiv",
    "version": 1
  }
}