Pith Number

pith:OHJJEWMT

pith:2013:OHJJEWMTEDBUN7PVD4GEJLB2T7

not attested not anchored not stored refs pending

Efficient Approximation for Triangulation of Minimum Treewidth

Eyal Amir

arxiv:1301.2253 v1 · 2013-01-10 · cs.DS · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OHJJEWMTEDBUN7PVD4GEJLB2T7}

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	2026-05-18T03:36:45.871627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71d292599320c346fdf51f0c44ac3a9fced5a720d76308f533c8910051fa6045

Aliases

arxiv: 1301.2253 · arxiv_version: 1301.2253v1 · doi: 10.48550/arxiv.1301.2253 · pith_short_12: OHJJEWMTEDBU · pith_short_16: OHJJEWMTEDBUN7PV · pith_short_8: OHJJEWMT

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/OHJJEWMTEDBUN7PVD4GEJLB2T7 \
  | 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: 71d292599320c346fdf51f0c44ac3a9fced5a720d76308f533c8910051fa6045

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4eeb42ddd7cdd52294167a20a94dfc9abbe78607e4451339d67530c5d3e96e52",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-01-10T16:22:23Z",
    "title_canon_sha256": "0003547453cd8bae9f000a66d1f0110606bba8adf700f6d0ee01626c8e6d948c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.2253",
    "kind": "arxiv",
    "version": 1
  }
}