Pith Number

pith:6IWOAK6N

pith:2025:6IWOAK6NAYAZS6GQLCCOFLLHU7

not attested not anchored not stored refs pending

Optimization of Next-Day Delivery Coverage using Constraint Programming and Random Key Optimizers

Arun Ramamurthy, Georgios Paschos, Jian Shen, Kyle Brubaker, Kyle E. C. Booth, Martin J. A. Schuetz, Philipp Loick

arxiv:2504.18749 v1 · 2025-04-26 · math.OC · 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{6IWOAK6NAYAZS6GQLCCOFLLHU7}

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	2026-07-05T10:54:20.820065Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f22ce02bcd06019978d05884e2ad67a7e4cd90e3d4b12b733c40456a1c71e1fa

Aliases

arxiv: 2504.18749 · arxiv_version: 2504.18749v1 · doi: 10.48550/arxiv.2504.18749 · pith_short_12: 6IWOAK6NAYAZ · pith_short_16: 6IWOAK6NAYAZS6GQ · pith_short_8: 6IWOAK6N

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/6IWOAK6NAYAZS6GQLCCOFLLHU7 \
  | 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: f22ce02bcd06019978d05884e2ad67a7e4cd90e3d4b12b733c40456a1c71e1fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e2026bd0282367babe8e53e84a9ff8a2521e1523733c4e223cfb1e9395e06fc",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2025-04-26T00:10:15Z",
    "title_canon_sha256": "ebfdfc14b09efd147909f245cb08ad08eccd4d035a225db761371ded67f1487c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.18749",
    "kind": "arxiv",
    "version": 1
  }
}