Pith Number

pith:6R7QBASW

pith:2018:6R7QBASWSB2ZIGGRWQNYBO6YF7

not attested not anchored not stored refs pending

A Novel Algorithm for the All-Best-Swap-Edge Problem on Tree Spanners

Davide Bil\`o, Kleitos Papadopoulos

arxiv:1807.01260 v2 · 2018-07-03 · 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{6R7QBASWSB2ZIGGRWQNYBO6YF7}

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	2026-05-18T00:04:22.631248Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f47f00825690759418d1b41b80bbd82fdb153fe7a355ef661080b28adcaf80d9

Aliases

arxiv: 1807.01260 · arxiv_version: 1807.01260v2 · doi: 10.48550/arxiv.1807.01260 · pith_short_12: 6R7QBASWSB2Z · pith_short_16: 6R7QBASWSB2ZIGGR · pith_short_8: 6R7QBASW

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/6R7QBASWSB2ZIGGRWQNYBO6YF7 \
  | 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: f47f00825690759418d1b41b80bbd82fdb153fe7a355ef661080b28adcaf80d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1b6fb5b3e161f1ae47363ae163514352eb1a50d7f78893fade923614fd59e9f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-07-03T16:10:46Z",
    "title_canon_sha256": "9a1c7e83a4660b733d60fdf4e778cdc20885dee9a407b4d991b9def2275922a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.01260",
    "kind": "arxiv",
    "version": 2
  }
}