Pith Number

pith:42AKDS3U

pith:2018:42AKDS3UFQEBEITSVQWD7ADT5M

not attested not anchored not stored refs pending

Patch-based Contour Prior Image Denoising for Salt and Pepper Noise

Bo Fu, XiangHai Wang, XiaoYang Zhao, Yi Li

arxiv:1808.08567 v1 · 2018-08-26 · cs.MM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{42AKDS3UFQEBEITSVQWD7ADT5M}

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	2026-05-18T00:07:16.038998Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e680a1cb742c08122272ac2c3f8073eb390cf5457c8e0c941243eaedadd3063e

Aliases

arxiv: 1808.08567 · arxiv_version: 1808.08567v1 · doi: 10.48550/arxiv.1808.08567 · pith_short_12: 42AKDS3UFQEB · pith_short_16: 42AKDS3UFQEBEITS · pith_short_8: 42AKDS3U

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/42AKDS3UFQEBEITSVQWD7ADT5M \
  | 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: e680a1cb742c08122272ac2c3f8073eb390cf5457c8e0c941243eaedadd3063e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "367222f0ce29d2d3fff1415bb2390ccfa23cb33f0ac77705420363064f00775a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2018-08-26T15:02:34Z",
    "title_canon_sha256": "effb0354e08795f94421974aaffb5e4d242889b04eb0dc732ffc8a2e41bed74e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.08567",
    "kind": "arxiv",
    "version": 1
  }
}