Pith Number

pith:OFPHK7HO

pith:2018:OFPHK7HOGSRZS7FPWULR4HT4GQ

not attested not anchored not stored refs pending

Edge Disjoint Spanning Trees in an Undirected Graph with E=2(V-1)

Hemant Malik, Ovidiu Daescu, Ramaswamy Chandrasekaran

arxiv:1808.05256 v2 · 2018-08-15 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OFPHK7HOGSRZS7FPWULR4HT4GQ}

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	2026-05-17T23:59:51.871312Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

715e757cee34a3997cafb5171e1e7c3420f66a2a67f46d331921f01bca74d1c4

Aliases

arxiv: 1808.05256 · arxiv_version: 1808.05256v2 · doi: 10.48550/arxiv.1808.05256 · pith_short_12: OFPHK7HOGSRZ · pith_short_16: OFPHK7HOGSRZS7FP · pith_short_8: OFPHK7HO

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/OFPHK7HOGSRZS7FPWULR4HT4GQ \
  | 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: 715e757cee34a3997cafb5171e1e7c3420f66a2a67f46d331921f01bca74d1c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f23ed1e54de801cda32e3cacab1ed5329dcc8c717d4c6bea82cf3d3283b9a13",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-08-15T19:02:39Z",
    "title_canon_sha256": "0cf21c219dac29c1d78c4d318028e848c07a8d14c4629375f8698458a92fc554"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.05256",
    "kind": "arxiv",
    "version": 2
  }
}