Pith Number

pith:HVTLR4MD

pith:2013:HVTLR4MDJF7IDMHLL7GVRDKH2T

not attested not anchored not stored refs pending

Connectedness of graphs and its application to connected matroids through covering-based rough sets

Aiping Huang, William Zhu

arxiv:1312.4234 v3 · 2013-12-16 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HVTLR4MDJF7IDMHLL7GVRDKH2T}

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	2026-05-18T02:25:40.474804Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d66b8f183497e81b0eb5fcd588d47d4ea267d5dfeb956c907b44a5ec01f6ee6

Aliases

arxiv: 1312.4234 · arxiv_version: 1312.4234v3 · doi: 10.48550/arxiv.1312.4234 · pith_short_12: HVTLR4MDJF7I · pith_short_16: HVTLR4MDJF7IDMHL · pith_short_8: HVTLR4MD

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/HVTLR4MDJF7IDMHLL7GVRDKH2T \
  | 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: 3d66b8f183497e81b0eb5fcd588d47d4ea267d5dfeb956c907b44a5ec01f6ee6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90cbdc9ff33d789ce1d57ade8a5a0d52e7140ee73793817f8ba2f72f606420dd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2013-12-16T02:32:43Z",
    "title_canon_sha256": "de047fde62e7ffb539f5a8e5244a78afe71001d98c2f3e9583982bbece096ac5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.4234",
    "kind": "arxiv",
    "version": 3
  }
}