Pith Number

pith:CVMUW2BL

pith:2014:CVMUW2BLLGK3UY62FQTJQMJC2O

not attested not anchored not stored refs pending

Self-adjointness of unbounded tridiagonal operators and spectra of their finite truncations

Eugenia N. Petropoulou, L. Vel\'azquez

arxiv:1402.1334 v2 · 2014-02-06 · math.FA · 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{CVMUW2BLLGK3UY62FQTJQMJC2O}

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	2026-05-18T02:47:31.326243Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15594b682b5995ba63da2c26983122d3bb8c1dd604bf7965551ef4b43a321416

Aliases

arxiv: 1402.1334 · arxiv_version: 1402.1334v2 · doi: 10.48550/arxiv.1402.1334 · pith_short_12: CVMUW2BLLGK3 · pith_short_16: CVMUW2BLLGK3UY62 · pith_short_8: CVMUW2BL

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/CVMUW2BLLGK3UY62FQTJQMJC2O \
  | 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: 15594b682b5995ba63da2c26983122d3bb8c1dd604bf7965551ef4b43a321416

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a273f059cc128783d799a4fd1df39390a90d0e4590982844460587ab5d7c2170",
    "cross_cats_sorted": [
      "math.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2014-02-06T12:14:17Z",
    "title_canon_sha256": "d4239f77ae535fc5373ab18a89f85753f6b57035b304b7a5976610735fcfed40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.1334",
    "kind": "arxiv",
    "version": 2
  }
}