Pith Number

pith:PTG7HH3X

pith:2019:PTG7HH3XCF3I3U2KVZF76FJ5QW

not attested not anchored not stored refs pending

Implementation of batched Sinkhorn iterations for entropy-regularized Wasserstein loss

Thomas Viehmann

arxiv:1907.01729 v2 · 2019-07-01 · 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{PTG7HH3XCF3I3U2KVZF76FJ5QW}

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	2026-05-17T23:41:24.168759Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ccdf39f7711768dd34aae4bff153d85b14a0797d21a038829a15223f155b839

Aliases

arxiv: 1907.01729 · arxiv_version: 1907.01729v2 · doi: 10.48550/arxiv.1907.01729 · pith_short_12: PTG7HH3XCF3I · pith_short_16: PTG7HH3XCF3I3U2K · pith_short_8: PTG7HH3X

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/PTG7HH3XCF3I3U2KVZF76FJ5QW \
  | 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: 7ccdf39f7711768dd34aae4bff153d85b14a0797d21a038829a15223f155b839

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11c689d9d1e102048e6dcd39be75a5501c65dd0d94f932576a62811873edda17",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2019-07-01T15:25:49Z",
    "title_canon_sha256": "19e019b14727343b5dc72b1c1c55e826db22075bcd464e43155e80aa3e689f53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01729",
    "kind": "arxiv",
    "version": 2
  }
}