Pith Number

pith:K3H7TWBY

pith:2018:K3H7TWBY2P4YGTIQ3WRDZ4AYSA

not attested not anchored not stored refs pending

Approximation Algorithm for the Partial Set Multi-Cover Problem

Ding-Zhu Du, Guangmo Tong, James Willson, Yingli Ran, Yishuo Shi, Zhao Zhang

arxiv:1811.08185 v1 · 2018-11-20 · cs.DM · 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{K3H7TWBY2P4YGTIQ3WRDZ4AYSA}

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	2026-05-17T23:41:30.894044Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56cff9d838d3f9834d10dda23cf018902d1cf0b2c9d288fcf86efe86ee6a62a2

Aliases

arxiv: 1811.08185 · arxiv_version: 1811.08185v1 · doi: 10.48550/arxiv.1811.08185 · pith_short_12: K3H7TWBY2P4Y · pith_short_16: K3H7TWBY2P4YGTIQ · pith_short_8: K3H7TWBY

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/K3H7TWBY2P4YGTIQ3WRDZ4AYSA \
  | 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: 56cff9d838d3f9834d10dda23cf018902d1cf0b2c9d288fcf86efe86ee6a62a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2491338c9a1590c6a43ccf9cc34b1763c516de51b816e985b3b59cdb24f021b",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2018-11-20T11:25:54Z",
    "title_canon_sha256": "abd1faa9f0f945d841467cdcc1ae5dcf314214d218c0b9dde219ab3d125b1ffd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.08185",
    "kind": "arxiv",
    "version": 1
  }
}