Pith Number

pith:2I2NG7KD

pith:2014:2I2NG7KDOUGBDWLA75YI6XJGE2

not attested not anchored not stored refs pending

Das Optimierungslabor -- ein Erfahrungsbericht (Experiencing optimization with students)

Cornelius Schwarz, J\"org Rambau, Konra Schade, Miriam Kie{\ss}ling, Sascha Kurz, Tobias Kreisel

arxiv:1401.8161 v1 · 2014-01-31 · 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{2I2NG7KDOUGBDWLA75YI6XJGE2}

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	2026-05-18T01:18:20.037337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d234d37d43750c11d960ff708f5d2626b5955f0bdd526ab39388ab6f8d5ef526

Aliases

arxiv: 1401.8161 · arxiv_version: 1401.8161v1 · doi: 10.48550/arxiv.1401.8161 · pith_short_12: 2I2NG7KDOUGB · pith_short_16: 2I2NG7KDOUGBDWLA · pith_short_8: 2I2NG7KD

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/2I2NG7KDOUGBDWLA75YI6XJGE2 \
  | 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: d234d37d43750c11d960ff708f5d2626b5955f0bdd526ab39388ab6f8d5ef526

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a055dabda07e9b6003c0324e3a08dd6fc6be8929776a32cf807f32af00db2fb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-01-31T13:32:35Z",
    "title_canon_sha256": "c80e5a42b84510d5a8483077946b2aa232c5245aba43c84600f60b344dc59b1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.8161",
    "kind": "arxiv",
    "version": 1
  }
}