Pith Number

pith:A7FI2MEO

pith:2023:A7FI2MEOIPVNE63HN6P6JVOQWF

not attested not anchored not stored refs pending

Approximation and Structured Prediction with Sparse Wasserstein Barycenters

Jean Feydy, Minh-Hieu Do, Olga Mula

arxiv:2302.05356 v1 · 2023-02-10 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A7FI2MEOIPVNE63HN6P6JVOQWF}

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.

Cited by

1 paper in Pith

Optimal Transport-Based Displacement Interpolation with Data Augmentation for Reduced Order Modeling of Nonlinear Dynamical Systems

Receipt and verification

First computed	2026-07-05T05:40:38.538358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07ca8d308e43ead27b676f9fe4d5d0b166d6a181630ad10b83c78f20c8210bf1

Aliases

arxiv: 2302.05356 · arxiv_version: 2302.05356v1 · doi: 10.48550/arxiv.2302.05356 · pith_short_12: A7FI2MEOIPVN · pith_short_16: A7FI2MEOIPVNE63H · pith_short_8: A7FI2MEO

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/A7FI2MEOIPVNE63HN6P6JVOQWF \
  | 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: 07ca8d308e43ead27b676f9fe4d5d0b166d6a181630ad10b83c78f20c8210bf1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a95f16f68ec45cb1f738ae81224906f2fa218e2a8e727e935bed0d0831bd9fa2",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2023-02-10T16:17:30Z",
    "title_canon_sha256": "22edde6f64d117618bcbe602432f93484dfd0b07b99de9a88b447d47da7a223f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2302.05356",
    "kind": "arxiv",
    "version": 1
  }
}