Pith Number

pith:WOYQWHWW

pith:2014:WOYQWHWWEX3CYMJY2KWHPZ4O7X

not attested not anchored not stored refs pending

"Plug-and-Play" Edge-Preserving Regularization

Donghui Chen, Misha E. Kilmer, Per Christian Hansen

arxiv:1406.1001 v1 · 2014-06-04 · math.NA · math.OC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WOYQWHWWEX3CYMJY2KWHPZ4O7X}

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	2026-05-18T02:50:30.556233Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3b10b1ed625f62c3138d2ac77e78efdef34e74da3fbb797fe34969a750d863a

Aliases

arxiv: 1406.1001 · arxiv_version: 1406.1001v1 · doi: 10.48550/arxiv.1406.1001 · pith_short_12: WOYQWHWWEX3C · pith_short_16: WOYQWHWWEX3CYMJY · pith_short_8: WOYQWHWW

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/WOYQWHWWEX3CYMJY2KWHPZ4O7X \
  | 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: b3b10b1ed625f62c3138d2ac77e78efdef34e74da3fbb797fe34969a750d863a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e6290e62c0cecf5c6d58f899a7674d0dc6433d21b5aecf1f0d6bb6c251f0671",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-06-04T11:10:20Z",
    "title_canon_sha256": "ae8123e601b587ca597f3ea0bd655a49c0666a90bf11141410624d4a8ac67b97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.1001",
    "kind": "arxiv",
    "version": 1
  }
}