Pith Number

pith:42CB6WFP

pith:2019:42CB6WFPOXQYUZ5REQQHKZ6VJB

not attested not anchored not stored refs pending

Embedded hyper-parameter tuning by Simulated Annealing

Matteo Fischetti, Matteo Stringher

arxiv:1906.01504 v1 · 2019-06-04 · cs.LG · cs.AI · cs.DM · math.OC · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{42CB6WFPOXQYUZ5REQQHKZ6VJB}

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	2026-05-17T23:44:16.352830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6841f58af75e18a67b124207567d5487054709eec0f3399fa48c988ca7e4bfb

Aliases

arxiv: 1906.01504 · arxiv_version: 1906.01504v1 · doi: 10.48550/arxiv.1906.01504 · pith_short_12: 42CB6WFPOXQY · pith_short_16: 42CB6WFPOXQYUZ5R · pith_short_8: 42CB6WFP

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/42CB6WFPOXQYUZ5REQQHKZ6VJB \
  | 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: e6841f58af75e18a67b124207567d5487054709eec0f3399fa48c988ca7e4bfb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f4f1d5cce7a3751e9e87aecc89c090fe87bc8b7a19958524cb1e98391c26e2e",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.DM",
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-06-04T15:14:36Z",
    "title_canon_sha256": "b3c57a95621e41371b73b0a172d73afd3c57f4184b2e13612e4df54cf113423c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.01504",
    "kind": "arxiv",
    "version": 1
  }
}