Pith Number

pith:Y5IBV6MN

pith:2009:Y5IBV6MNHMAZVMO57AULTF6EAO

not attested not anchored not stored refs pending

On Explicit Recursive Formulas in the Spectral Perturbation Analysis of a Jordan Block

Aaron Welters

arxiv:0905.4051 v3 · 2009-05-25 · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y5IBV6MNHMAZVMO57AULTF6EAO}

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.

Cited by

1 paper in Pith

Non-Hermitian Rayleigh-Schr\"{o}dinger-like Perturbation Theory at Exceptional Point

Receipt and verification

First computed	2026-05-18T04:34:55.526556Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7501af98d3b019ab1ddf828b997c403be1590bd69e0246bd6c7edc927a2355f

Aliases

arxiv: 0905.4051 · arxiv_version: 0905.4051v3 · doi: 10.48550/arxiv.0905.4051 · pith_short_12: Y5IBV6MNHMAZ · pith_short_16: Y5IBV6MNHMAZVMO5 · pith_short_8: Y5IBV6MN

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/Y5IBV6MNHMAZVMO57AULTF6EAO \
  | 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: c7501af98d3b019ab1ddf828b997c403be1590bd69e0246bd6c7edc927a2355f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6b2d21b830d6eb8da5a824a75926e7744d6429830e77efd9e3e0ddf24a37c6b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2009-05-25T17:40:11Z",
    "title_canon_sha256": "4ea89ecb5b83a9db3e8f0d7dc80771069c40778e531e72a53b6366695590ea55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.4051",
    "kind": "arxiv",
    "version": 3
  }
}