Pith Number

pith:5LFC3D5D

pith:2021:5LFC3D5DBWKN7MBSA6RFJS6GXE

not attested not anchored not stored refs pending

Quadratic and Higher-Order Unconstrained Binary Optimization of Railway Rescheduling for Quantum Computing

Akash Kundu, Krzysztof Domino, Krzysztof Krawiec, \"Ozlem Salehi

arxiv:2107.03234 v5 · 2021-07-07 · cs.ET · cs.SY · eess.SY · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5LFC3D5DBWKN7MBSA6RFJS6GXE}

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	2026-07-05T05:03:33.200216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eaca2d8fa30d94dfb03207a254cbc6b90e9c8e6a778697690fafe8e5e6f7f421

Aliases

arxiv: 2107.03234 · arxiv_version: 2107.03234v5 · doi: 10.48550/arxiv.2107.03234 · pith_short_12: 5LFC3D5DBWKN · pith_short_16: 5LFC3D5DBWKN7MBS · pith_short_8: 5LFC3D5D

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/5LFC3D5DBWKN7MBSA6RFJS6GXE \
  | 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: eaca2d8fa30d94dfb03207a254cbc6b90e9c8e6a778697690fafe8e5e6f7f421

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f7382c728117f8da360a54c7f22d68b7d27aa3c6f27e36a01f79c55c5320b63",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.ET",
    "submitted_at": "2021-07-07T14:07:07Z",
    "title_canon_sha256": "9d87fbfa14d5f0a8ee422d0c567146d1f203d7cfcf245a9cff3c1a298e56ee97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.03234",
    "kind": "arxiv",
    "version": 5
  }
}