Pith Number

pith:DV5AOSJB

pith:2020:DV5AOSJBAGJAWZ4TJYQM3UF4XO

not attested not anchored not stored refs pending

Image Restoration: Structured Low Rank Matrix Framework for Piecewise Smooth Functions and Beyond

Jae Kyu Choi, Jian-Feng Cai, Jingyang Li, Ke Wei

arxiv:2012.06827 v1 · 2020-12-12 · math.NA · cs.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{DV5AOSJBAGJAWZ4TJYQM3UF4XO}

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	2026-07-05T01:58:59.984764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d7a07492101920b67934e20cdd0bcbbbdc6364c4ca268bc8bed76044c2fc387

Aliases

arxiv: 2012.06827 · arxiv_version: 2012.06827v1 · doi: 10.48550/arxiv.2012.06827 · pith_short_12: DV5AOSJBAGJA · pith_short_16: DV5AOSJBAGJAWZ4T · pith_short_8: DV5AOSJB

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/DV5AOSJBAGJAWZ4TJYQM3UF4XO \
  | 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: 1d7a07492101920b67934e20cdd0bcbbbdc6364c4ca268bc8bed76044c2fc387

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d653976c5388d5bb57d9231aeea52bc27003faf60899ae97001d239797878521",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2020-12-12T14:18:35Z",
    "title_canon_sha256": "87eae9fc9402ba79604a65cea6670d53e33a4b645be428278feb3e651510bc45"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.06827",
    "kind": "arxiv",
    "version": 1
  }
}