Pith Number

pith:S3EJ67YX

pith:2013:S3EJ67YX6BL5ENEV5UY3HMWE2P

not attested not anchored not stored refs pending

Eigenvalue estimates for the resolvent of a non-normal matrix

Oleg Szehr

arxiv:1305.7208 v2 · 2013-05-30 · math.SP · math-ph · math.FA · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S3EJ67YX6BL5ENEV5UY3HMWE2P}

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	2026-05-18T02:29:23.691408Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96c89f7f17f057d23495ed31b3b2c4d3f2eb5c83fdf100323cd697485cc92428

Aliases

arxiv: 1305.7208 · arxiv_version: 1305.7208v2 · doi: 10.48550/arxiv.1305.7208 · pith_short_12: S3EJ67YX6BL5 · pith_short_16: S3EJ67YX6BL5ENEV · pith_short_8: S3EJ67YX

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/S3EJ67YX6BL5ENEV5UY3HMWE2P \
  | 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: 96c89f7f17f057d23495ed31b3b2c4d3f2eb5c83fdf100323cd697485cc92428

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8914a3c030aecb9d0b338d82de1dd3de13ec3c7105aca4138b54bded5aaa6a8f",
    "cross_cats_sorted": [
      "math-ph",
      "math.FA",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2013-05-30T19:03:39Z",
    "title_canon_sha256": "831c06f3a782b299e53571719c770e5680eda0c36a50e8c4026551221314f4d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.7208",
    "kind": "arxiv",
    "version": 2
  }
}