Pith Number

pith:KJFWNZUU

pith:2015:KJFWNZUUMMA34PZH6IQORQD4DL

not attested not anchored not stored refs pending

Sparse Representation of a Blur Kernel for Blind Image Restoration

Chia-Chen Lee, Wen-Liang Hwang

arxiv:1512.04418 v1 · 2015-12-14 · 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{KJFWNZUUMMA34PZH6IQORQD4DL}

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	2026-05-18T01:24:22.284911Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

524b66e6946301be3f27f220e8c07c1af228032dc223a8b90aa27aec84af8c5d

Aliases

arxiv: 1512.04418 · arxiv_version: 1512.04418v1 · doi: 10.48550/arxiv.1512.04418 · pith_short_12: KJFWNZUUMMA3 · pith_short_16: KJFWNZUUMMA34PZH · pith_short_8: KJFWNZUU

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/KJFWNZUUMMA34PZH6IQORQD4DL \
  | 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: 524b66e6946301be3f27f220e8c07c1af228032dc223a8b90aa27aec84af8c5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "918d55cb59bfa7e0a71a282dde20928715c3e77bdc1a0579cdb76e3862237aca",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-12-14T17:32:41Z",
    "title_canon_sha256": "e5961e7919acca2af39be4d7031ef7b8a891b717fb700d816a99231e9876c9e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.04418",
    "kind": "arxiv",
    "version": 1
  }
}