Pith Number

pith:AI2ESVZG

pith:2020:AI2ESVZGLKBXWXPNKMA6ZMACS7

not attested not anchored not stored refs pending

Tight Bounds on Subexponential Time Approximation of Set Cover and Related Problems

Guy Kortsarz, Magn\'us M. Halld\'orsson, Marek Cygan

arxiv:2008.05374 v1 · 2020-08-12 · 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{AI2ESVZGLKBXWXPNKMA6ZMACS7}

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	2026-07-05T01:26:46.107581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02344957265a837b5ded5301ecb00297ebe627d5b12cfcada8833fa97fb6f41b

Aliases

arxiv: 2008.05374 · arxiv_version: 2008.05374v1 · doi: 10.48550/arxiv.2008.05374 · pith_short_12: AI2ESVZGLKBX · pith_short_16: AI2ESVZGLKBXWXPN · pith_short_8: AI2ESVZG

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/AI2ESVZGLKBXWXPNKMA6ZMACS7 \
  | 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: 02344957265a837b5ded5301ecb00297ebe627d5b12cfcada8833fa97fb6f41b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f686e24d3549eb47a952df56218a1d564aa808c9a393cf992d2d9f1ed6552234",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2020-08-12T15:14:57Z",
    "title_canon_sha256": "6cb3e8392c1766c5008b3ec697e34b3010c9d816db4316172bacaefee84f096c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.05374",
    "kind": "arxiv",
    "version": 1
  }
}