Pith Number

pith:XB6CMCAT

pith:2015:XB6CMCAT7BYVJQQ2IAFKQLA57F

not attested not anchored not stored refs pending

Perfect and quasiperfect domination in trees

Carmen Hernando, Ignacio M. Pelayo, Jos\'e C\'aceres, Mar\'ia Luz Puertas, Merc\'e Mora

arxiv:1505.07967 v1 · 2015-05-29 · 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{XB6CMCAT7BYVJQQ2IAFKQLA57F}

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	2026-05-18T02:00:00.159150Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b87c260813f87154c21a400aa82c1df95730dab2a4206597e217fae7a279e392

Aliases

arxiv: 1505.07967 · arxiv_version: 1505.07967v1 · doi: 10.48550/arxiv.1505.07967 · pith_short_12: XB6CMCAT7BYV · pith_short_16: XB6CMCAT7BYVJQQ2 · pith_short_8: XB6CMCAT

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/XB6CMCAT7BYVJQQ2IAFKQLA57F \
  | 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: b87c260813f87154c21a400aa82c1df95730dab2a4206597e217fae7a279e392

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ca2162150e7c9f915fde47415effca8fa100440f663f3e9cb4d124866424dea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-05-29T09:30:39Z",
    "title_canon_sha256": "f2ac82887b7ece48e692d33e101fde0fa44a51ee9bdd40137f04f3444870fde7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.07967",
    "kind": "arxiv",
    "version": 1
  }
}