Pith Number

pith:EZ22IVWA

pith:2014:EZ22IVWARTM5F3G6BGIDAP4WKL

not attested not anchored not stored refs pending

Some remarks on the staircasing phenomenon in total-variation based image denoising

Khalid Jalalzai

arxiv:1402.0091 v1 · 2014-02-01 · 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{EZ22IVWARTM5F3G6BGIDAP4WKL}

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	2026-05-18T03:00:24.808394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2675a456c08cd9d2ecde0990303f9652f297e29ce876ed138f6842d259111afc

Aliases

arxiv: 1402.0091 · arxiv_version: 1402.0091v1 · doi: 10.48550/arxiv.1402.0091 · pith_short_12: EZ22IVWARTM5 · pith_short_16: EZ22IVWARTM5F3G6 · pith_short_8: EZ22IVWA

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/EZ22IVWARTM5F3G6BGIDAP4WKL \
  | 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: 2675a456c08cd9d2ecde0990303f9652f297e29ce876ed138f6842d259111afc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf76c31d78bba853ca8fe3e2ab700b2b512f7c511526116dd2f4b5f0d6b21018",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-02-01T15:23:16Z",
    "title_canon_sha256": "b3b90c8499b8f03f6796716a36b4258cc10c3363aa480c67e118e5f14569ea74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.0091",
    "kind": "arxiv",
    "version": 1
  }
}