Pith Number

pith:ZWA22RE6

pith:2019:ZWA22RE6MLHRPRERZEKLMXQSEH

not attested not anchored not stored refs pending

A Simple and Efficient Algorithm for Finding Minimum Spanning Tree Replacement Edges

David A. Bader, Paul Burkhardt

arxiv:1908.03473 v4 · 2019-08-09 · 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{ZWA22RE6MLHRPRERZEKLMXQSEH}

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	2026-07-05T05:28:58.226652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd81ad449e62cf17c491c914b65e1221f1b3fdab3021c1eeed07b8a32d2c4f78

Aliases

arxiv: 1908.03473 · arxiv_version: 1908.03473v4 · doi: 10.48550/arxiv.1908.03473 · pith_short_12: ZWA22RE6MLHR · pith_short_16: ZWA22RE6MLHRPRER · pith_short_8: ZWA22RE6

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/ZWA22RE6MLHRPRERZEKLMXQSEH \
  | 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: cd81ad449e62cf17c491c914b65e1221f1b3fdab3021c1eeed07b8a32d2c4f78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69908a8a10eb918eb4d0ab91826773f8ff3bb4c0ec7076547743a78a47d77e9c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-08-09T14:31:09Z",
    "title_canon_sha256": "0832137b95bbcefda60c78c7d5a7b93af0a3d8aaa704fc761a59c251a4d07d3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03473",
    "kind": "arxiv",
    "version": 4
  }
}