Pith Number

pith:3VZQ7QF2

pith:2019:3VZQ7QF2QX5ZSRISCSH4ME65VW

not attested not anchored not stored refs pending

Universal Block Tridiagonalization in B(H) and Beyond

Gary Weiss, Sasmita Patnaik, Srdjan Petrovic

arxiv:1905.00823 v2 · 2019-05-02 · math.FA · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3VZQ7QF2QX5ZSRISCSH4ME65VW}

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	2026-07-05T00:16:34.081569Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd730fc0ba85fb994512148fc613ddad8ea24b84bfaacfee8fc1543abff2ad15

Aliases

arxiv: 1905.00823 · arxiv_version: 1905.00823v2 · doi: 10.48550/arxiv.1905.00823 · pith_short_12: 3VZQ7QF2QX5Z · pith_short_16: 3VZQ7QF2QX5ZSRIS · pith_short_8: 3VZQ7QF2

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/3VZQ7QF2QX5ZSRISCSH4ME65VW \
  | 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: dd730fc0ba85fb994512148fc613ddad8ea24b84bfaacfee8fc1543abff2ad15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21330259d435486c0d95f085db4851d9e366983330686b0dffbd20352def7dd0",
    "cross_cats_sorted": [
      "math.OA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2019-05-02T15:54:25Z",
    "title_canon_sha256": "33bf802453582ced8478213ca35e2912395bd8a057df850698b98849887e1d10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.00823",
    "kind": "arxiv",
    "version": 2
  }
}