Pith Number

pith:5PNIOZOK

pith:2014:5PNIOZOK77HESWBHYVW3VJ5XTN

not attested not anchored not stored refs pending

Notes on the subspace perturbation problem for off-diagonal perturbations

Albrecht Seelmann

arxiv:1412.6294 v2 · 2014-12-19 · math.SP · 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{5PNIOZOK77HESWBHYVW3VJ5XTN}

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	2026-05-18T01:10:23.836751Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebda8765caffce495827c56dbaa7b79b7340aa3df522625e910aa09dc0c5deba

Aliases

arxiv: 1412.6294 · arxiv_version: 1412.6294v2 · doi: 10.48550/arxiv.1412.6294 · pith_short_12: 5PNIOZOK77HE · pith_short_16: 5PNIOZOK77HESWBH · pith_short_8: 5PNIOZOK

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/5PNIOZOK77HESWBHYVW3VJ5XTN \
  | 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: ebda8765caffce495827c56dbaa7b79b7340aa3df522625e910aa09dc0c5deba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "019283cfce570072e79244bfeab810b58f7679b7b73a3054aa46e5310ba1605e",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2014-12-19T11:27:03Z",
    "title_canon_sha256": "7ddd5d8501c3bce1e20b0e7013a18023d30b974df60b1c6cff5a5ea2e6783c9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.6294",
    "kind": "arxiv",
    "version": 2
  }
}