Pith Number

pith:ZQYLLEGC

pith:2019:ZQYLLEGCIBIBQB2XEG4GCDTFMV

not attested not anchored not stored refs pending

Approximation Algorithms for Min-Distance Problems

Mina Dalirrooyfard, Nicole Wein, Nikhil Vyas, Virginia Vassilevska Williams, Yinzhan Xu, Yuancheng Yu

arxiv:1904.11606 v2 · 2019-04-25 · 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{ZQYLLEGCIBIBQB2XEG4GCDTFMV}

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	2026-05-17T23:43:14.447100Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc30b590c2405018075721b8610e65654da42915dc0af6e3991fbc2db7d271a0

Aliases

arxiv: 1904.11606 · arxiv_version: 1904.11606v2 · doi: 10.48550/arxiv.1904.11606 · pith_short_12: ZQYLLEGCIBIB · pith_short_16: ZQYLLEGCIBIBQB2X · pith_short_8: ZQYLLEGC

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/ZQYLLEGCIBIBQB2XEG4GCDTFMV \
  | 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: cc30b590c2405018075721b8610e65654da42915dc0af6e3991fbc2db7d271a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bafaba1ef6787a16264f57d6ca169ad5156a57798007f7df7179113e8443cfc3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-04-25T22:00:54Z",
    "title_canon_sha256": "6558131cf95bd614776f590e3cc85bee508c8407ed35d9fe122edc9cdd26cacb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.11606",
    "kind": "arxiv",
    "version": 2
  }
}