Pith Number

pith:X4R363OC

pith:2017:X4R363OCIXOXMQJKYIVRKY6J3X

not attested not anchored not stored refs pending

Semi-Global Weighted Least Squares in Image Filtering

Chuanhua Shen, Jie Yang, Wei Liu, Xiaogang Chen, Zhi Liu

arxiv:1705.01674 v4 · 2017-05-04 · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X4R363OCIXOXMQJKYIVRKY6J3X}

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	2026-07-05T01:36:56.474359Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf23bf6dc245dd76412ac22b1563c9dde67decc6fbc38acc021227518696010a

Aliases

arxiv: 1705.01674 · arxiv_version: 1705.01674v4 · doi: 10.48550/arxiv.1705.01674 · pith_short_12: X4R363OCIXOX · pith_short_16: X4R363OCIXOXMQJK · pith_short_8: X4R363OC

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/X4R363OCIXOXMQJKYIVRKY6J3X \
  | 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: bf23bf6dc245dd76412ac22b1563c9dde67decc6fbc38acc021227518696010a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c67b065d126e3386a5f8bd60c7ffced3503b0a39a83ee943766b1638d87f8a1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2017-05-04T02:04:37Z",
    "title_canon_sha256": "1c4675f52aecf5ebaa8536535fc9fbaf4b7527d8d2df6977473bb05cf26bf716"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.01674",
    "kind": "arxiv",
    "version": 4
  }
}