Pith Number

pith:CSCTXWDL

pith:2012:CSCTXWDLKPQ5AXSC6XOYNUC3IC

not attested not anchored not stored refs pending

Optimal Cuts and Partitions in Tree Metrics in Polynomial Time

Andrzej Lingas, Dzmitry Sledneu, Marek Karpinski

arxiv:1212.3471 v1 · 2012-12-14 · cs.DS · cs.CC · cs.DM · math.CO · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CSCTXWDLKPQ5AXSC6XOYNUC3IC}

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	2026-05-18T03:38:24.526203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14853bd86b53e1d05e42f5dd86d05b409decad0df83a0d128519241c8a6048a1

Aliases

arxiv: 1212.3471 · arxiv_version: 1212.3471v1 · doi: 10.48550/arxiv.1212.3471 · pith_short_12: CSCTXWDLKPQ5 · pith_short_16: CSCTXWDLKPQ5AXSC · pith_short_8: CSCTXWDL

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/CSCTXWDLKPQ5AXSC6XOYNUC3IC \
  | 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: 14853bd86b53e1d05e42f5dd86d05b409decad0df83a0d128519241c8a6048a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80cc4e5f5b29ebfbb2f0984b187567d602fe45af2f9b6caef2976bd7f0be404f",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DM",
      "math.CO",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2012-12-14T13:52:42Z",
    "title_canon_sha256": "bd3bf65cf0036d2a28f5bf8141223cea1188ed2b6d2466933ffcc0aec70bc2fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.3471",
    "kind": "arxiv",
    "version": 1
  }
}