Pith Number

pith:YZ2EOIJ4

pith:2013:YZ2EOIJ4Q47BPXZ2KAXHV6DXIO

not attested not anchored not stored refs pending

Algorithms for Cut Problems on Trees

Binhai Zhu, Boting Yang, Fenghui Zhang, Ge Xia, Guohui Lin, Iyad Kanj, Jinhui Xu, Peng Zhang, Tian Liu, Weitian Tong

arxiv:1304.3653 v1 · 2013-04-12 · 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{YZ2EOIJ4Q47BPXZ2KAXHV6DXIO}

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	2026-05-18T03:28:06.953810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c67447213c873e17df3a502e7af87743b617ebce35f680f37fd89b0c2187e9d6

Aliases

arxiv: 1304.3653 · arxiv_version: 1304.3653v1 · doi: 10.48550/arxiv.1304.3653 · pith_short_12: YZ2EOIJ4Q47B · pith_short_16: YZ2EOIJ4Q47BPXZ2 · pith_short_8: YZ2EOIJ4

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/YZ2EOIJ4Q47BPXZ2KAXHV6DXIO \
  | 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: c67447213c873e17df3a502e7af87743b617ebce35f680f37fd89b0c2187e9d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8dfe8e8fbd2c3a2b0196bd628a62316cd19b2363f3fb86aa69f217b5d8cbfab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-04-12T14:57:47Z",
    "title_canon_sha256": "076248fe4695081bda703a1479e60fa23315b4a036943bf63e05281a8f6bd9fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.3653",
    "kind": "arxiv",
    "version": 1
  }
}