Pith Number

pith:FGH7SUUG

pith:2017:FGH7SUUGSYZ44KGQJ4TIKC3GH7

not attested not anchored not stored refs pending

Denoising of image gradients and total generalized variation denoising

Birgit Komander, Dirk A. Lorenz, Lena Vestweber

arxiv:1712.08585 v3 · 2017-12-22 · math.OC · cs.CV · math.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{FGH7SUUGSYZ44KGQJ4TIKC3GH7}

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	2026-05-18T00:19:16.615099Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

298ff952869633ce28d04f26850b663fe939216fe2b743e1a3b4f5df5ca09362

Aliases

arxiv: 1712.08585 · arxiv_version: 1712.08585v3 · doi: 10.48550/arxiv.1712.08585 · pith_short_12: FGH7SUUGSYZ4 · pith_short_16: FGH7SUUGSYZ44KGQ · pith_short_8: FGH7SUUG

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/FGH7SUUGSYZ44KGQJ4TIKC3GH7 \
  | 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: 298ff952869633ce28d04f26850b663fe939216fe2b743e1a3b4f5df5ca09362

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a80e06d382ffc88611b282b4c5306763127266c47e17b8ce4b8f9cc7a2f4fbb",
    "cross_cats_sorted": [
      "cs.CV",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-12-22T17:33:16Z",
    "title_canon_sha256": "02f42dd44dc414b47f0e9282e4225c78830811c9926b346a0a0681c054559c8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.08585",
    "kind": "arxiv",
    "version": 3
  }
}