Pith Number

pith:LRWYSZFC

pith:2018:LRWYSZFCK4JH7MFQUP7UXODEQB

not attested not anchored not stored refs pending

A Framework for Vehicle Routing Approximation Schemes in Trees

Alice Paul, Amariah Becker

arxiv:1807.04308 v2 · 2018-07-11 · 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{LRWYSZFCK4JH7MFQUP7UXODEQB}

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	2026-05-17T23:52:41.541377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c6d8964a257127fb0b0a3ff4bb864805ff62c209369dff2f2da455605c1bc50

Aliases

arxiv: 1807.04308 · arxiv_version: 1807.04308v2 · doi: 10.48550/arxiv.1807.04308 · pith_short_12: LRWYSZFCK4JH · pith_short_16: LRWYSZFCK4JH7MFQ · pith_short_8: LRWYSZFC

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/LRWYSZFCK4JH7MFQUP7UXODEQB \
  | 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: 5c6d8964a257127fb0b0a3ff4bb864805ff62c209369dff2f2da455605c1bc50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3425ef0d143547234eb36777559bfb9f26c388f4c0c4ee341a4e22928f453831",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-07-11T18:14:33Z",
    "title_canon_sha256": "e6b75c91c25ed4c5d4f970a337acafcc035b7f89f221cf5aec539dc44cea7de4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04308",
    "kind": "arxiv",
    "version": 2
  }
}