Pith Number

pith:C5H5VKLR

pith:2011:C5H5VKLRSDP5UVHIY7CJ6LTITK

not attested not anchored not stored refs pending

A Simple Algorithm for Constructing all Real Hessenberg Unitary Matrices

Janet C. Tremain

arxiv:1111.2435 v1 · 2011-11-10 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C5H5VKLRSDP5UVHIY7CJ6LTITK}

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	2026-05-18T04:08:34.179396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

174fdaa97190dfda54e8c7c49f2e689abf6082d23feca543a6e6f110674f947d

Aliases

arxiv: 1111.2435 · arxiv_version: 1111.2435v1 · doi: 10.48550/arxiv.1111.2435 · pith_short_12: C5H5VKLRSDP5 · pith_short_16: C5H5VKLRSDP5UVHI · pith_short_8: C5H5VKLR

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/C5H5VKLRSDP5UVHIY7CJ6LTITK \
  | 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: 174fdaa97190dfda54e8c7c49f2e689abf6082d23feca543a6e6f110674f947d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "049e284afcae4215c2ac3784c373ae1bd59be48c208156b0dbb959f1a9e568e4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2011-11-10T10:01:48Z",
    "title_canon_sha256": "7831e5a13c8b72dcad786c3070aade672b7b550138560b252a57e06c6b88144b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.2435",
    "kind": "arxiv",
    "version": 1
  }
}