Pith Number

pith:QD6OMWBW

pith:2022:QD6OMWBW4HNRUUDPW36DUHK3N3

not attested not anchored not stored refs pending

Optimal Learning

Andrea Bonito, Guergana Petrova, Peter Binev, Ronald DeVore

arxiv:2203.15994 v2 · 2022-03-30 · cs.LG · cs.NA · math.NA · 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{QD6OMWBW4HNRUUDPW36DUHK3N3}

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	2026-07-05T06:24:23.506778Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80fce65836e1db1a506fb6fc3a1d5b6ee89217c0882ec2bd24134ab18d43865c

Aliases

arxiv: 2203.15994 · arxiv_version: 2203.15994v2 · doi: 10.48550/arxiv.2203.15994 · pith_short_12: QD6OMWBW4HNR · pith_short_16: QD6OMWBW4HNRUUDP · pith_short_8: QD6OMWBW

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/QD6OMWBW4HNRUUDPW36DUHK3N3 \
  | 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: 80fce65836e1db1a506fb6fc3a1d5b6ee89217c0882ec2bd24134ab18d43865c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80471b1b3e8d952ac1097aaaa004486f93d8e29da26a8d0f760afe159f07eb61",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA",
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2022-03-30T02:05:27Z",
    "title_canon_sha256": "7e7ac8320ec4d53cf10cb9cc0eeda1e7afc88046d758b4bac8b089e788f73a1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.15994",
    "kind": "arxiv",
    "version": 2
  }
}