Pith Number

pith:KI2HD5CT

pith:2015:KI2HD5CTQ5EERNK7CGTEHGEUY7

not attested not anchored not stored refs pending

An $O(\log OPT)$-approximation for covering and packing minor models of ${\theta}_r$

Dimitrios M. Thilikos, Dimitris Chatzidimitriou, Ignasi Sau, Jean-Florent Raymond

arxiv:1510.03945 v2 · 2015-10-14 · cs.DS · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KI2HD5CTQ5EERNK7CGTEHGEUY7}

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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	2026-05-18T00:52:29.452198Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

523471f453874848b55f11a6439894c7d6d6769f0f0b0a5a271a3be31d1b1997

Aliases

arxiv: 1510.03945 · arxiv_version: 1510.03945v2 · doi: 10.48550/arxiv.1510.03945 · pith_short_12: KI2HD5CTQ5EE · pith_short_16: KI2HD5CTQ5EERNK7 · pith_short_8: KI2HD5CT

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/KI2HD5CTQ5EERNK7CGTEHGEUY7 \
  | 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: 523471f453874848b55f11a6439894c7d6d6769f0f0b0a5a271a3be31d1b1997

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ab384c8aa7878f88c39cb7f467b80d79ece21aa918fb4e286c0a8867115699a",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-10-14T01:41:15Z",
    "title_canon_sha256": "e510be1798d0a727d20134408a9510294c0fb751697a5518403ebcbcd9051410"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.03945",
    "kind": "arxiv",
    "version": 2
  }
}