Pith Number

pith:W3CUCKZT

pith:2017:W3CUCKZTIFTEIIIWWVYKEPI4YI

not attested not anchored not stored refs pending

Image denoising using group sparsity residual and external nonlocal self-similarity prior

Lan Tang, Qiong Wang, Xinggan Zhang, Yechao Bai, Zhiyuan Zha

arxiv:1701.00723 v1 · 2017-01-03 · 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{W3CUCKZTIFTEIIIWWVYKEPI4YI}

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	2026-05-18T00:53:28.395194Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6c5412b334166442116b570a23d1cc2336b7f38579d8a79e91f39bbc1a83112

Aliases

arxiv: 1701.00723 · arxiv_version: 1701.00723v1 · doi: 10.48550/arxiv.1701.00723 · pith_short_12: W3CUCKZTIFTE · pith_short_16: W3CUCKZTIFTEIIIW · pith_short_8: W3CUCKZT

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/W3CUCKZTIFTEIIIWWVYKEPI4YI \
  | 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: b6c5412b334166442116b570a23d1cc2336b7f38579d8a79e91f39bbc1a83112

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "686888dc2db0758c9063d589ceff19b0971b5b09344d0b1ddc07c05e3d14a829",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-01-03T15:32:16Z",
    "title_canon_sha256": "2c36773742fef6e517fb95bd774fa59563d1ef16734a5350b3c4ba8a88b5aea2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.00723",
    "kind": "arxiv",
    "version": 1
  }
}