Pith Number

pith:VDLMN4PW

pith:2018:VDLMN4PW3JOA4IRW6UBGONQL2P

not attested not anchored not stored refs pending

Learning Deep Gradient Descent Optimization for Image Deconvolution

Anton van den Hengel, Chunhua Shen, Dong Gong, Qinfeng Shi, Yanning Zhang, Zhen Zhang

arxiv:1804.03368 v2 · 2018-04-10 · 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{VDLMN4PW3JOA4IRW6UBGONQL2P}

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	2026-07-05T00:40:52.551950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8d6c6f1f6da5c0e2236f50267360bd3e7ce96e876faaee8ff5495132b046020

Aliases

arxiv: 1804.03368 · arxiv_version: 1804.03368v2 · doi: 10.48550/arxiv.1804.03368 · pith_short_12: VDLMN4PW3JOA · pith_short_16: VDLMN4PW3JOA4IRW · pith_short_8: VDLMN4PW

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/VDLMN4PW3JOA4IRW6UBGONQL2P \
  | 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: a8d6c6f1f6da5c0e2236f50267360bd3e7ce96e876faaee8ff5495132b046020

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf488e5780e6d9aecd1de917109b28b27a9de67115cf2f95e7f6c6d321d15ee9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-04-10T06:58:12Z",
    "title_canon_sha256": "6d419ce4c6f4da0de292ab921fe5fdd2bed3908c23aeaea911ebef6c90da8a92"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.03368",
    "kind": "arxiv",
    "version": 2
  }
}