Pith Number

pith:7JCX7CAB

pith:2020:7JCX7CABC6QIZEWQFY23MGWERV

not attested not anchored not stored refs pending

Parameter Critic: a Model Free Variance Reduction Method Through Imperishable Samples

Alejandro Ribeiro, Harshat Kumar, Juan Cervino

arxiv:2009.13668 v1 · 2020-09-28 · eess.SY · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7JCX7CABC6QIZEWQFY23MGWERV}

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	2026-07-05T01:38:43.796921Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa457f880117a08c92d02e35b61ac48d607df86c65913cac806b95771138dde2

Aliases

arxiv: 2009.13668 · arxiv_version: 2009.13668v1 · doi: 10.48550/arxiv.2009.13668 · pith_short_12: 7JCX7CABC6QI · pith_short_16: 7JCX7CABC6QIZEWQ · pith_short_8: 7JCX7CAB

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/7JCX7CABC6QIZEWQFY23MGWERV \
  | 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: fa457f880117a08c92d02e35b61ac48d607df86c65913cac806b95771138dde2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d560ba67f2855f83e6e4160a1068a1a61c1bb7f615f1817dada783a63a2a5461",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2020-09-28T22:39:36Z",
    "title_canon_sha256": "75c7408f725537188b43b413318edeae072e6f5eb835583fbef43786dc6158a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.13668",
    "kind": "arxiv",
    "version": 1
  }
}