Pith Number

pith:ZS5UUHTU

pith:2011:ZS5UUHTUP4IDB5SSFYIF4IVCNX

not attested not anchored not stored refs pending

Compression via Matroids: A Randomized Polynomial Kernel for Odd Cycle Transversal

Magnus Wahlstr\"om, Stefan Kratsch

arxiv:1107.3068 v2 · 2011-07-15 · cs.DS · cs.DM

Open paper page JSON What is a Pith Number?

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Receipt and verification

First computed	2026-05-18T02:21:42.854744Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccbb4a1e747f1030f6522e105e22a26de69329f6c2a7751a74e14066c401bc0b

Aliases

arxiv: 1107.3068 · arxiv_version: 1107.3068v2 · doi: 10.48550/arxiv.1107.3068 · pith_short_12: ZS5UUHTUP4ID · pith_short_16: ZS5UUHTUP4IDB5SS · pith_short_8: ZS5UUHTU

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/ZS5UUHTUP4IDB5SSFYIF4IVCNX \
  | 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: ccbb4a1e747f1030f6522e105e22a26de69329f6c2a7751a74e14066c401bc0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8b7fe53998f058625f1af6af1a38fe9d66846c35b4d26f2aba9e94228e86387",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2011-07-15T13:54:00Z",
    "title_canon_sha256": "20d052b2870c88b9e0e4694c69b8b68f9ca39d630888eaed1152025d9e2a9806"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.3068",
    "kind": "arxiv",
    "version": 2
  }
}