Pith Number

pith:PS4YDYQL

pith:2016:PS4YDYQL4RKVBN3HRWHT4VDF7O

not attested not anchored not stored refs pending

A 17/12-Approximation Algorithm for 2-Vertex-Connected Spanning Subgraphs on Graphs with Minimum Degree At Least 3

Vishnu V. Narayan

arxiv:1612.04790 v2 · 2016-12-14 · 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{PS4YDYQL4RKVBN3HRWHT4VDF7O}

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	2026-05-18T00:52:37.221002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cb981e20be45550b7678d8f3e5465fb94eba2b0385bc900770371349cf64121

Aliases

arxiv: 1612.04790 · arxiv_version: 1612.04790v2 · doi: 10.48550/arxiv.1612.04790 · pith_short_12: PS4YDYQL4RKV · pith_short_16: PS4YDYQL4RKVBN3H · pith_short_8: PS4YDYQL

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/PS4YDYQL4RKVBN3HRWHT4VDF7O \
  | 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: 7cb981e20be45550b7678d8f3e5465fb94eba2b0385bc900770371349cf64121

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3493e04cb4ec2f42e53c99b57a4d3f7aadeb57cd7f1e392434d7f8c37ccf9c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2016-12-14T20:07:40Z",
    "title_canon_sha256": "0e58e78c300704247c98b7018f498acbe8510610343543cbe87b9022e694c8b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.04790",
    "kind": "arxiv",
    "version": 2
  }
}