Pith Number

pith:PMFBKY5A

pith:2017:PMFBKY5ANWJZTAJ2ZC4CEE42O2

not attested not anchored not stored refs pending

Packing coloring of Sierpi\'{n}ski-type graphs

Bo\v{s}tjan Bre\v{s}ar, Jasmina Ferme

arxiv:1711.03856 v1 · 2017-11-10 · 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{PMFBKY5ANWJZTAJ2ZC4CEE42O2}

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	2026-05-18T00:30:51.263646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b0a1563a06d9399813ac8b822139a7685eab43415b3e8ad8e262e31e9ed5b13

Aliases

arxiv: 1711.03856 · arxiv_version: 1711.03856v1 · doi: 10.48550/arxiv.1711.03856 · pith_short_12: PMFBKY5ANWJZ · pith_short_16: PMFBKY5ANWJZTAJ2 · pith_short_8: PMFBKY5A

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/PMFBKY5ANWJZTAJ2ZC4CEE42O2 \
  | 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: 7b0a1563a06d9399813ac8b822139a7685eab43415b3e8ad8e262e31e9ed5b13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37950a58e6adcf0d6dcfdb34688b44fc99c5492548e5d6f875bf884ac719e933",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-11-10T15:08:13Z",
    "title_canon_sha256": "0f5449163085da30c97dbe9d0742fe354340045e71e5d7ce4db733bc477e1a36"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.03856",
    "kind": "arxiv",
    "version": 1
  }
}