Pith Number

pith:O42SNCTB

pith:2021:O42SNCTBTLEPF2UFKDTQDOS5ON

not attested not anchored not stored refs pending

A hybrid optimization approach for employee rostering: Use cases at Swissgrid and lessons learned

Evangelos Vrettos, Jangwon Park

arxiv:2111.10845 v1 · 2021-11-21 · cs.AI · cs.NE · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O42SNCTBTLEPF2UFKDTQDOS5ON}

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	2026-07-05T03:33:57.419121Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7735268a619ac8f2ea8550e701ba5d737d7554250f289f390eb66b32397c37da

Aliases

arxiv: 2111.10845 · arxiv_version: 2111.10845v1 · doi: 10.48550/arxiv.2111.10845 · pith_short_12: O42SNCTBTLEP · pith_short_16: O42SNCTBTLEPF2UF · pith_short_8: O42SNCTB

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/O42SNCTBTLEPF2UFKDTQDOS5ON \
  | 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: 7735268a619ac8f2ea8550e701ba5d737d7554250f289f390eb66b32397c37da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb957310e153528664261bf33da57f45f0d25e91f5c616e27619eeeae7008da5",
    "cross_cats_sorted": [
      "cs.NE",
      "math.OC"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2021-11-21T15:48:28Z",
    "title_canon_sha256": "603cd7a4f4984c2f6adb9176efdadddb8acee6433745545429b47f386698c519"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.10845",
    "kind": "arxiv",
    "version": 1
  }
}