Pith Number

pith:FRZGIH5H

pith:2018:FRZGIH5HI7T67VXNMACK7VTSAU

not attested not anchored not stored refs pending

Core Influence Mechanism on Vertex-Cover Problem through Leaf-Removal-Core Breaking

Wei Wei, Xiangnan Feng, Xing Li, Zhiming Zheng

arxiv:1810.05799 v1 · 2018-10-13 · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FRZGIH5HI7T67VXNMACK7VTSAU}

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	2026-05-17T23:39:58.112091Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c72641fa747e7efd6ed6004afd672051e8817d8ae1f302c0be7cee5dcefdfa0

Aliases

arxiv: 1810.05799 · arxiv_version: 1810.05799v1 · doi: 10.48550/arxiv.1810.05799 · pith_short_12: FRZGIH5HI7T6 · pith_short_16: FRZGIH5HI7T67VXN · pith_short_8: FRZGIH5H

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/FRZGIH5HI7T67VXNMACK7VTSAU \
  | 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: 2c72641fa747e7efd6ed6004afd672051e8817d8ae1f302c0be7cee5dcefdfa0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c502e62f61e3e674c541fa412fda1c559bd90d1bff3301af56d564d04c8473f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2018-10-13T05:19:35Z",
    "title_canon_sha256": "5f17a94d08d2f002410a48ee168e5e7f2a28af5b645e4c8eaf893a3de5d9dae7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.05799",
    "kind": "arxiv",
    "version": 1
  }
}