Pith Number

pith:NBBBVOUB

pith:2014:NBBBVOUB5IGMEMNVWOOQQIJISB

not attested not anchored not stored refs pending

A Robust and Scalable Algorithm for the Steiner Problem in Graphs

Eduardo Uchoa, Renato F. Werneck, Thomas Pajor

arxiv:1412.2787 v2 · 2014-12-08 · 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{NBBBVOUB5IGMEMNVWOOQQIJISB}

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	2026-05-18T02:31:37.580444Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68421aba81ea0cc231b5b39d0821289057b959d6de85f976b1451fdf2d71e631

Aliases

arxiv: 1412.2787 · arxiv_version: 1412.2787v2 · doi: 10.48550/arxiv.1412.2787 · pith_short_12: NBBBVOUB5IGM · pith_short_16: NBBBVOUB5IGMEMNV · pith_short_8: NBBBVOUB

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/NBBBVOUB5IGMEMNVWOOQQIJISB \
  | 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: 68421aba81ea0cc231b5b39d0821289057b959d6de85f976b1451fdf2d71e631

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5d0be35d1780d2d2d7082bc09c9abc1c4b887c4fd3c020b74c3392a8332f887",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-12-08T21:48:26Z",
    "title_canon_sha256": "13716c4a8d6cf31b301f36f8e57cd5ac66f7dba72fa2b52b6a40754c4c1d3798"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.2787",
    "kind": "arxiv",
    "version": 2
  }
}