Pith Number

pith:O7OR5WMC

pith:2021:O7OR5WMCVZDIZWDIOJGC7UYIXW

not attested not anchored not stored refs pending

Large-scale optimal transport map estimation using projection pursuit

Cheng Meng, Jingyi Zhang, Mengrui Zhang, Ping Ma, Wenxuan Zhong, Yuan Ke

arxiv:2106.05838 v1 · 2021-06-09 · stat.ML · cs.LG · math.ST · stat.ME · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O7OR5WMCVZDIZWDIOJGC7UYIXW}

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	2026-07-05T02:48:13.623632Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77dd1ed982ae468cd868724c2fd308bdb01ca1b78d8bcabcfb0d8f4da09f0cd8

Aliases

arxiv: 2106.05838 · arxiv_version: 2106.05838v1 · doi: 10.48550/arxiv.2106.05838 · pith_short_12: O7OR5WMCVZDI · pith_short_16: O7OR5WMCVZDIZWDI · pith_short_8: O7OR5WMC

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/O7OR5WMCVZDIZWDIOJGC7UYIXW \
  | 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: 77dd1ed982ae468cd868724c2fd308bdb01ca1b78d8bcabcfb0d8f4da09f0cd8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62cbd625358d31d9eb36488c640e672d45fab6c112790db2ad38f92cd05c1196",
    "cross_cats_sorted": [
      "cs.LG",
      "math.ST",
      "stat.ME",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2021-06-09T03:53:41Z",
    "title_canon_sha256": "2e738584df8e4d35bb8d25b7a2fc4e1c90dcdb80f81a993b6f0421deb4872006"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.05838",
    "kind": "arxiv",
    "version": 1
  }
}