Pith Number

pith:76O5V3BC

pith:2009:76O5V3BCZEFBE2ILWX4BX7JXPF

not attested not anchored not stored refs pending

Inverse Spectral Problems for Tridiagonal N by N Complex Hamiltonians

Gusein Sh. Guseinov

arxiv:0902.2464 v1 · 2009-02-14 · math.SP · math.CA · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{76O5V3BCZEFBE2ILWX4BX7JXPF}

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	2026-07-04T15:37:57.801737Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff9ddaec22c90a12690bb5f81bfd37796c50063b72bdb76201f3f4510fab9d32

Aliases

arxiv: 0902.2464 · arxiv_version: 0902.2464v1 · doi: 10.48550/arxiv.0902.2464 · pith_short_12: 76O5V3BCZEFB · pith_short_16: 76O5V3BCZEFBE2IL · pith_short_8: 76O5V3BC

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/76O5V3BCZEFBE2ILWX4BX7JXPF \
  | 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: ff9ddaec22c90a12690bb5f81bfd37796c50063b72bdb76201f3f4510fab9d32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "deb3d5b29db9fe1587f59ce20b4ab6613acda345ff9b9eaba9f37a22789ff59f",
    "cross_cats_sorted": [
      "math.CA",
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2009-02-14T12:46:56Z",
    "title_canon_sha256": "deb347ac172a45a22769d9917cd4d587fe3b749b367531fa70149374fb3c2052"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.2464",
    "kind": "arxiv",
    "version": 1
  }
}