Pith Number

pith:4JJ7TOAB

pith:2016:4JJ7TOABJSVEUSKRQLSZXPNARX

not attested not anchored not stored refs pending

Constrained Hitting Set and Steiner Tree in $SC_k$ and $2K_2$-free Graphs

N. Sadagopan, S. Dhanalakshmi

arxiv:1610.00853 v1 · 2016-10-04 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4JJ7TOABJSVEUSKRQLSZXPNARX}

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	2026-05-18T01:03:13.069682Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e253f9b8014caa4a495182e59bbda08dc1497ea96366a5b0eccfe202e8c0284f

Aliases

arxiv: 1610.00853 · arxiv_version: 1610.00853v1 · doi: 10.48550/arxiv.1610.00853 · pith_short_12: 4JJ7TOABJSVE · pith_short_16: 4JJ7TOABJSVEUSKR · pith_short_8: 4JJ7TOAB

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/4JJ7TOABJSVEUSKRQLSZXPNARX \
  | 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: e253f9b8014caa4a495182e59bbda08dc1497ea96366a5b0eccfe202e8c0284f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28b7b2215fae2473ebe9e5c3c1af8ec860d8cd5d2f690ce6c4632624065fed81",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-10-04T06:05:49Z",
    "title_canon_sha256": "a2505e57f694a62a7ef2afc0bbef552a0983a3abb825e844309ad3e87a856139"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.00853",
    "kind": "arxiv",
    "version": 1
  }
}