Pith Number

pith:MH3T3CQ2

pith:2010:MH3T3CQ24W2CVNJLCDU6DQPV5G

not attested not anchored not stored refs pending

On the approximation ability of evolutionary optimization with application to minimum set cover

Xin Yao, Yang Yu, Zhi-Hua Zhou

arxiv:1011.4028 v4 · 2010-11-17 · cs.NE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MH3T3CQ24W2CVNJLCDU6DQPV5G}

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	2026-05-18T02:23:36.386511Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61f73d8a1ae5b42ab52b10e9e1c1f5e9906d984065179a72602a5f50b7bda2d7

Aliases

arxiv: 1011.4028 · arxiv_version: 1011.4028v4 · doi: 10.48550/arxiv.1011.4028 · pith_short_12: MH3T3CQ24W2C · pith_short_16: MH3T3CQ24W2CVNJL · pith_short_8: MH3T3CQ2

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/MH3T3CQ24W2CVNJLCDU6DQPV5G \
  | 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: 61f73d8a1ae5b42ab52b10e9e1c1f5e9906d984065179a72602a5f50b7bda2d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f870474bb8c28cccead3f04a2fedaaa9bb1e83482438790c9f56bf2d0f5502e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2010-11-17T19:08:42Z",
    "title_canon_sha256": "89ac90d928a00d9f7d7fc847e2232b582e6ad0a57ff2377e95dd6c1eb2fbef1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.4028",
    "kind": "arxiv",
    "version": 4
  }
}