Pith Number

pith:CA6XTCWM

pith:2022:CA6XTCWMYJV2NLGGQ2YZQ4R4TD

not attested not anchored not stored refs pending

MLPro: A System for Hosting Crowdsourced Machine Learning Challenges for Open-Ended Research Problems

Aayush Nandkeolyar, Peter Washington, Sam Yang

arxiv:2204.01216 v1 · 2022-04-04 · cs.HC · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CA6XTCWMYJV2NLGGQ2YZQ4R4TD}

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	2026-07-05T04:11:16.484928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

103d798accc26ba6acc686b198723c98de4f2b1df6e2237f19a4f0fbb0a39741

Aliases

arxiv: 2204.01216 · arxiv_version: 2204.01216v1 · doi: 10.48550/arxiv.2204.01216 · pith_short_12: CA6XTCWMYJV2 · pith_short_16: CA6XTCWMYJV2NLGG · pith_short_8: CA6XTCWM

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/CA6XTCWMYJV2NLGGQ2YZQ4R4TD \
  | 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: 103d798accc26ba6acc686b198723c98de4f2b1df6e2237f19a4f0fbb0a39741

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e89a36bd0f7fa9cba2d84dd228b40728d28e0938af7aaa8fde8aea4cb7a41418",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2022-04-04T02:56:12Z",
    "title_canon_sha256": "cf3aa411d1f7c37b8a48c465f97daf172f0ab28a1fc85da7a49d033522bee701"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.01216",
    "kind": "arxiv",
    "version": 1
  }
}