Pith Number

pith:S7I32TIV

pith:2025:S7I32TIVVPAXAFWMFXSQZ4K7ZN

not attested not anchored not stored refs pending

Image Restoration Models with Optimal Transport and Total Variation Regularization

Weijia Huang, Wei Zhu, Wenli Yang, Zhongyi Huang

arxiv:2503.14947 v1 · 2025-03-19 · 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{S7I32TIVVPAXAFWMFXSQZ4K7ZN}

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	2026-07-05T10:34:28.201332Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97d1bd4d15abc17016cc2de50cf15fcb6620aa42349a54995999fd3ec98c87b6

Aliases

arxiv: 2503.14947 · arxiv_version: 2503.14947v1 · doi: 10.48550/arxiv.2503.14947 · pith_short_12: S7I32TIVVPAX · pith_short_16: S7I32TIVVPAXAFWM · pith_short_8: S7I32TIV

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/S7I32TIVVPAXAFWMFXSQZ4K7ZN \
  | 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: 97d1bd4d15abc17016cc2de50cf15fcb6620aa42349a54995999fd3ec98c87b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61084b5d6e856545e22a2a956c0c5398ef1d4f5baa8495bdfa63daf196f6c0f1",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-03-19T07:25:03Z",
    "title_canon_sha256": "d63815215ca3d45cf849012c322f68f7224566488fe6a702ceaf24c99666f974"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.14947",
    "kind": "arxiv",
    "version": 1
  }
}