Pith Number

pith:SZ6C3WQM

pith:2018:SZ6C3WQMLNCYRBTUFJRRNUQUXW

not attested not anchored not stored refs pending

NP-Completeness and Inapproximability of the Virtual Network Embedding Problem and Its Variants

Matthias Rost, Stefan Schmid

arxiv:1801.03162 v2 · 2018-01-09 · cs.NI · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SZ6C3WQMLNCYRBTUFJRRNUQUXW}

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	2026-05-18T00:19:56.521487Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

967c2dda0c5b458886742a6316d214bd8f27ed3c5b75c966e752be20fab32928

Aliases

arxiv: 1801.03162 · arxiv_version: 1801.03162v2 · doi: 10.48550/arxiv.1801.03162 · pith_short_12: SZ6C3WQMLNCY · pith_short_16: SZ6C3WQMLNCYRBTU · pith_short_8: SZ6C3WQM

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/SZ6C3WQMLNCYRBTUFJRRNUQUXW \
  | 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: 967c2dda0c5b458886742a6316d214bd8f27ed3c5b75c966e752be20fab32928

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7efe6599f8b1ce032a2217dc6181c0cd12f663c19c2fc1a1d07ac93f4dbab23a",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2018-01-09T22:24:22Z",
    "title_canon_sha256": "173002df4320b8502f56f3337cd8d8e38ef9af0314736c8597e46e48b8acb645"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.03162",
    "kind": "arxiv",
    "version": 2
  }
}