Pith Number

pith:4T6ROOWD

pith:2016:4T6ROOWD524VQUOEZU43SR3DWH

not attested not anchored not stored refs pending

On the Complexity of Weighted Greedy Matchings

Argyrios Deligkas, George B. Mertzios, Paul G. Spirakis

arxiv:1602.05909 v2 · 2016-02-18 · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4T6ROOWD524VQUOEZU43SR3DWH}

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	2026-05-18T01:14:20.458274Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4fd173ac3eeb95851c4cd39b94763b1c54fe1a76f0c3c91ee827fe49ba14d19

Aliases

arxiv: 1602.05909 · arxiv_version: 1602.05909v2 · doi: 10.48550/arxiv.1602.05909 · pith_short_12: 4T6ROOWD524V · pith_short_16: 4T6ROOWD524VQUOE · pith_short_8: 4T6ROOWD

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/4T6ROOWD524VQUOEZU43SR3DWH \
  | 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: e4fd173ac3eeb95851c4cd39b94763b1c54fe1a76f0c3c91ee827fe49ba14d19

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6a34bf10178383259c5b90bdbf233a4ee6c90523dfda25e1b326154d52d8486",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2016-02-18T18:55:16Z",
    "title_canon_sha256": "c75e557ca2b2be2c628a40ff2a3bccf9502a21bce0318f86ec58ae16f4da4ad5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.05909",
    "kind": "arxiv",
    "version": 2
  }
}