Pith Number

pith:QYHMVRSK

pith:2017:QYHMVRSKYBQWFHHKZS5Q5J6XRO

not attested not anchored not stored refs pending

Parameterized Approximation Algorithms for some Location Problems in Graphs

Arne Leitert, Feodor F. Dragan

arxiv:1706.07475 v1 · 2017-06-22 · 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{QYHMVRSKYBQWFHHKZS5Q5J6XRO}

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	2026-05-18T00:41:48.995346Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

860ecac64ac061629ceaccbb0ea7d78ba67ca67eb326c1b1c757408a710df590

Aliases

arxiv: 1706.07475 · arxiv_version: 1706.07475v1 · doi: 10.48550/arxiv.1706.07475 · pith_short_12: QYHMVRSKYBQW · pith_short_16: QYHMVRSKYBQWFHHK · pith_short_8: QYHMVRSK

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/QYHMVRSKYBQWFHHKZS5Q5J6XRO \
  | 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: 860ecac64ac061629ceaccbb0ea7d78ba67ca67eb326c1b1c757408a710df590

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "618e6597d64b69bef3191b1ed72e5097e02ae65359309ea97de58279ab56f2b6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-06-22T19:56:51Z",
    "title_canon_sha256": "03a22e32e76b12480a6bb9a63bb356f3c0835a3517df765ef6b003c45d31ddef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.07475",
    "kind": "arxiv",
    "version": 1
  }
}