Pith Number

pith:P6FJ3AI6

pith:2018:P6FJ3AI6VKB7ARWINJUTR7NEOL

not attested not anchored not stored refs pending

Projection-Free Algorithms in Statistical Estimation

Chao Qu, Huan Xu, Yan Li

arxiv:1805.07844 v1 · 2018-05-20 · stat.ML · 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{P6FJ3AI6VKB7ARWINJUTR7NEOL}

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	2026-05-18T00:15:32.371853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f8a9d811eaa83f046c86a6938fda472fe29c255afc321cb2d46053b2edfc064

Aliases

arxiv: 1805.07844 · arxiv_version: 1805.07844v1 · doi: 10.48550/arxiv.1805.07844 · pith_short_12: P6FJ3AI6VKB7 · pith_short_16: P6FJ3AI6VKB7ARWI · pith_short_8: P6FJ3AI6

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/P6FJ3AI6VKB7ARWINJUTR7NEOL \
  | 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: 7f8a9d811eaa83f046c86a6938fda472fe29c255afc321cb2d46053b2edfc064

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f25fca1653195ce2e1e528be6e6dc46c0baeaa360ec6d20e0da6b12efd1cf34",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2018-05-20T23:49:25Z",
    "title_canon_sha256": "56133515314a6b617d4b90518d992c26bb4098854dc02f968f90ae0d80028814"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.07844",
    "kind": "arxiv",
    "version": 1
  }
}