Pith Number

pith:RTF4UGHE

pith:2020:RTF4UGHEHWBNKAUOY4OJMIGSXQ

not attested not anchored not stored refs pending

The Multi-Symplectic Lanczos Algorithm and Its Applications to Color Image Processing

Mei-Xiang Zhao, Xuan Liu, Zhigang Jia

arxiv:2005.01299 v1 · 2020-05-04 · math.NA · cs.DS · 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{RTF4UGHEHWBNKAUOY4OJMIGSXQ}

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	2026-07-05T01:00:06.321693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ccbca18e43d82d5028ec71c9620d2bc2e3b256bea41427a36966a8e0d9df913

Aliases

arxiv: 2005.01299 · arxiv_version: 2005.01299v1 · doi: 10.48550/arxiv.2005.01299 · pith_short_12: RTF4UGHEHWBN · pith_short_16: RTF4UGHEHWBNKAUO · pith_short_8: RTF4UGHE

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/RTF4UGHEHWBNKAUOY4OJMIGSXQ \
  | 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: 8ccbca18e43d82d5028ec71c9620d2bc2e3b256bea41427a36966a8e0d9df913

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8d481e5fff8f7b5405bfe941124ee7725d3624cf42fadd60240a42b1dd086ee",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2020-05-04T07:13:14Z",
    "title_canon_sha256": "5ee9cf6586e8efb1c82a86dfe06156401e0379dfe83f9b3f0cb089643749da42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.01299",
    "kind": "arxiv",
    "version": 1
  }
}