Pith Number

pith:SRDMFKOA

pith:2002:SRDMFKOA7MYDOOOWSXMQRML24V

not attested not anchored not stored refs pending

Sequential and Parallel Algorithms for Mixed Packing and Covering

Neal E. Young

arxiv:cs/0205039 v1 · 2002-05-18 · 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{SRDMFKOA7MYDOOOWSXMQRML24V}

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	2026-05-18T01:22:44.395598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9446c2a9c0fb303739d695d908b17ae5456b62a01c21f839a556a11456af5727

Aliases

arxiv: cs/0205039 · arxiv_version: cs/0205039v1 · doi: 10.48550/arxiv.cs/0205039 · pith_short_12: SRDMFKOA7MYD · pith_short_16: SRDMFKOA7MYDOOOW · pith_short_8: SRDMFKOA

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/SRDMFKOA7MYDOOOWSXMQRML24V \
  | 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: 9446c2a9c0fb303739d695d908b17ae5456b62a01c21f839a556a11456af5727

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37b8d063a6577790d8b20a2f1e5cd8e21c860dfcc519e6edbb8f60625165c52e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.DS",
    "submitted_at": "2002-05-18T15:12:41Z",
    "title_canon_sha256": "db46585c2ece030e7d66ac0c2265d9e06d6e134a311f1007982cde1a2b5dc03e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0205039",
    "kind": "arxiv",
    "version": 1
  }
}