Pith Number

pith:WUYYG7IF

pith:2023:WUYYG7IFMQ2JCPJTUBNE6BABKK

not attested not anchored not stored refs pending

Cascadic Tensor Multigrid Method and Economic Cascadic Tensor Multigrid Method for Image Restoration Problems

Chenliang Li, Yuhan Chen, Ziqi Yan

arxiv:2311.01924 v1 · 2023-11-03 · 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{WUYYG7IFMQ2JCPJTUBNE6BABKK}

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	2026-07-05T07:08:47.417365Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b531837d056434913d33a05a4f040152b50933f12990635e94d6b7bbd5522930

Aliases

arxiv: 2311.01924 · arxiv_version: 2311.01924v1 · doi: 10.48550/arxiv.2311.01924 · pith_short_12: WUYYG7IFMQ2J · pith_short_16: WUYYG7IFMQ2JCPJT · pith_short_8: WUYYG7IF

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/WUYYG7IFMQ2JCPJTUBNE6BABKK \
  | 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: b531837d056434913d33a05a4f040152b50933f12990635e94d6b7bbd5522930

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbcefcd8164382ea5145e1b6d182bcabf8395bc64d220f1c3f8e2a56ce529359",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2023-11-03T14:02:25Z",
    "title_canon_sha256": "ba6329fb02586a8a291da693240293ee9b808ad15f97d71ff2e25a0fcb957acc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2311.01924",
    "kind": "arxiv",
    "version": 1
  }
}