Pith Number

pith:K45CDOGA

pith:2016:K45CDOGATX25PVABQXA4B7KPY7

not attested not anchored not stored refs pending

Pebbling in Semi-2-Trees

Glenn Hurlbert, Liliana Alc\'on, Marisa Gutierrez

arxiv:1604.04045 v2 · 2016-04-14 · 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{K45CDOGATX25PVABQXA4B7KPY7}

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	2026-05-18T00:52:50.383819Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

573a21b8c09df5d7d40185c1c0fd4fc7f12d694d8ba7d84ba0efa88779a8082b

Aliases

arxiv: 1604.04045 · arxiv_version: 1604.04045v2 · doi: 10.48550/arxiv.1604.04045 · pith_short_12: K45CDOGATX25 · pith_short_16: K45CDOGATX25PVAB · pith_short_8: K45CDOGA

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/K45CDOGATX25PVABQXA4B7KPY7 \
  | 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: 573a21b8c09df5d7d40185c1c0fd4fc7f12d694d8ba7d84ba0efa88779a8082b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2fa3ff851f2e95966fa797024723233ce888b88f90e13292ae69f9ac21d635a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-04-14T06:41:19Z",
    "title_canon_sha256": "dc6946b80405ec166dafb92b39fae04f3cfa450e8bef03d0f1eaf1d262a97320"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.04045",
    "kind": "arxiv",
    "version": 2
  }
}