Pith Number

pith:XDUHGJV3

pith:2016:XDUHGJV3SW2UZN4ZTYITYE45BW

not attested not anchored not stored refs pending

A General Truncated Regularization Framework for Contrast-Preserving Variational Signal and Image Restoration: Motivation and Implementation

Chunlin Wu, Shuang Wen, Zhifang Liu

arxiv:1611.08817 v3 · 2016-11-27 · 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{XDUHGJV3SW2UZN4ZTYITYE45BW}

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	2026-05-18T00:13:19.735668Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8e87326bb95b54cb7999e113c139d0d8d515d0e089e5a5174c752cea9a6b570

Aliases

arxiv: 1611.08817 · arxiv_version: 1611.08817v3 · doi: 10.48550/arxiv.1611.08817 · pith_short_12: XDUHGJV3SW2U · pith_short_16: XDUHGJV3SW2UZN4Z · pith_short_8: XDUHGJV3

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/XDUHGJV3SW2UZN4ZTYITYE45BW \
  | 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: b8e87326bb95b54cb7999e113c139d0d8d515d0e089e5a5174c752cea9a6b570

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef6f539e6a6ac01f59c5cc3d4a052f9c0e4bb27c1d1b3de7a86cf7b2e4392804",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-11-27T10:01:53Z",
    "title_canon_sha256": "72ced19750baf91b48ced70f8e59a0b4ca0acaed1bd8207f62fb9f5bb711d970"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.08817",
    "kind": "arxiv",
    "version": 3
  }
}