Pith Number

pith:2HH7V2VF

pith:2026:2HH7V2VFLZZJ3244XZ654OK6BK

not attested not anchored not stored refs pending

Shifted Matrix-Sign Reflectors for Prescribed-Index Eigenspace Reflection

Jin Zhao

arxiv:2605.24840 v1 · 2026-05-24 · 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{2HH7V2VFLZZJ3244XZ654OK6BK}

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	2026-05-26T01:04:01.211581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1cffaeaa55e729deb9cbe7dde395e0a936cf844d9df3f18a8aa06d56a4f731e

Aliases

arxiv: 2605.24840 · arxiv_version: 2605.24840v1 · doi: 10.48550/arxiv.2605.24840 · pith_short_12: 2HH7V2VFLZZJ · pith_short_16: 2HH7V2VFLZZJ3244 · pith_short_8: 2HH7V2VF

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/2HH7V2VFLZZJ3244XZ654OK6BK \
  | 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: d1cffaeaa55e729deb9cbe7dde395e0a936cf844d9df3f18a8aa06d56a4f731e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e2314fd47316f3a48c77ad6a9d97250dc699b97a970c90642b2099ae7beb604",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-05-24T03:12:09Z",
    "title_canon_sha256": "bfe4be8273fa71a89eea778e48e85d739afaa2565732d8412561cef36ac16071"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.24840",
    "kind": "arxiv",
    "version": 1
  }
}