Pith Number

pith:SF6HTHSL

pith:2013:SF6HTHSLPBSGDHVNLOMH7KEV5U

not attested not anchored not stored refs pending

Computing the Greedy Spanner in Linear Space

Alex P. ten Brink, Kevin Buchin, Quirijn W. Bouts, Sander P. A. Alewijnse

arxiv:1306.4919 v1 · 2013-06-20 · cs.CG · 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{SF6HTHSLPBSGDHVNLOMH7KEV5U}

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	2026-05-18T03:20:21.154897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

917c799e4b7864619ead5b987fa895ed36434135ed7f17b672f12a5792672cc6

Aliases

arxiv: 1306.4919 · arxiv_version: 1306.4919v1 · doi: 10.48550/arxiv.1306.4919 · pith_short_12: SF6HTHSLPBSG · pith_short_16: SF6HTHSLPBSGDHVN · pith_short_8: SF6HTHSL

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/SF6HTHSLPBSGDHVNLOMH7KEV5U \
  | 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: 917c799e4b7864619ead5b987fa895ed36434135ed7f17b672f12a5792672cc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "362da00326b34243df0731bf6e254b7b027e3f0165658fb6982400b35616e02e",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2013-06-20T15:51:45Z",
    "title_canon_sha256": "98ed523131d4e05acb190930fc3796f209439fe11829045f73c89a0c1f1b6f7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.4919",
    "kind": "arxiv",
    "version": 1
  }
}