Pith Number

pith:NCIWP4QI

pith:2015:NCIWP4QI4A2ZDHBLKJANWHWJ4E

not attested not anchored not stored refs pending

A cubic vertex kernel for Diamond-free Edge Deletion and more

Naveen Sivadasan, R. B. Sandeep

arxiv:1507.08792 v2 · 2015-07-31 · 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{NCIWP4QI4A2ZDHBLKJANWHWJ4E}

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	2026-05-18T01:23:33.424796Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

689167f208e035919c2b5240db1ec9e1134bbce68c64d49c9bf764b045473189

Aliases

arxiv: 1507.08792 · arxiv_version: 1507.08792v2 · doi: 10.48550/arxiv.1507.08792 · pith_short_12: NCIWP4QI4A2Z · pith_short_16: NCIWP4QI4A2ZDHBL · pith_short_8: NCIWP4QI

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/NCIWP4QI4A2ZDHBLKJANWHWJ4E \
  | 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: 689167f208e035919c2b5240db1ec9e1134bbce68c64d49c9bf764b045473189

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2ffe720b3846afaee80da1d52217e45ed7bcca3214f10eb8877b33600b4c75e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-07-31T08:06:38Z",
    "title_canon_sha256": "d920bad0c2f74d101d8639dbcb4f4511efa24d0b6a3fd3caf17b0e923b641494"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.08792",
    "kind": "arxiv",
    "version": 2
  }
}