Pith Number

pith:EGL3RJWE

pith:2018:EGL3RJWEKVCSPZCL2KYKPIAVHQ

not attested not anchored not stored refs pending

Roster Evaluation Based on Classifiers for the Nurse Rostering Problem

P\v{r}emysl \v{S}\r{u}cha, Roman V\'aclav\'ik, Zden\v{e}k Hanz\'alek

arxiv:1804.05002 v1 · 2018-04-13 · cs.AI · cs.LG · 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{EGL3RJWEKVCSPZCL2KYKPIAVHQ}

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	2026-05-18T00:15:36.303674Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2197b8a6c4554527e44bd2b0a7a0153c1e8c77c9db4c46cbdc2ca6af2be53051

Aliases

arxiv: 1804.05002 · arxiv_version: 1804.05002v1 · doi: 10.48550/arxiv.1804.05002 · pith_short_12: EGL3RJWEKVCS · pith_short_16: EGL3RJWEKVCSPZCL · pith_short_8: EGL3RJWE

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/EGL3RJWEKVCSPZCL2KYKPIAVHQ \
  | 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: 2197b8a6c4554527e44bd2b0a7a0153c1e8c77c9db4c46cbdc2ca6af2be53051

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9365c0957fab8749034d33948b8d3a9181c64a6db6f7b8d57acc837f2076c841",
    "cross_cats_sorted": [
      "cs.LG",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2018-04-13T15:47:00Z",
    "title_canon_sha256": "490dad21038a64c3889eaad257ab07a946b1991ee223a8dbde854f670370aeea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.05002",
    "kind": "arxiv",
    "version": 1
  }
}