Pith Number

pith:FRR4Y2Z3

pith:2018:FRR4Y2Z3NMAIPXAQZBUDK5TB6V

not attested not anchored not stored refs pending

Simultaneous Fidelity and Regularization Learning for Image Restoration

David Zhang, Dongwei Ren, Lei Zhang, Ming-Hsuan Yang, Wangmeng Zuo

arxiv:1804.04522 v4 · 2018-04-12 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FRR4Y2Z3NMAIPXAQZBUDK5TB6V}

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	2026-05-17T23:41:01.308620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c63cc6b3b6b0087dc10c868357661f57d7d02c82e4a89cd13a643146cd00f0c

Aliases

arxiv: 1804.04522 · arxiv_version: 1804.04522v4 · doi: 10.48550/arxiv.1804.04522 · pith_short_12: FRR4Y2Z3NMAI · pith_short_16: FRR4Y2Z3NMAIPXAQ · pith_short_8: FRR4Y2Z3

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/FRR4Y2Z3NMAIPXAQZBUDK5TB6V \
  | 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: 2c63cc6b3b6b0087dc10c868357661f57d7d02c82e4a89cd13a643146cd00f0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5d21e3359978a6494637666245cf0f5cc49902383cc0205adbda2d23471a9a0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-04-12T14:04:13Z",
    "title_canon_sha256": "614229540b164049538e7057d8833c81b5597ff2cb725136157f713024b6aff9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04522",
    "kind": "arxiv",
    "version": 4
  }
}