Pith Number

pith:XCTOFYXS

pith:2002:XCTOFYXSXYR5CNYRJBVGFT5BUQ

not attested not anchored not stored refs pending

Darboux transformations for quasi-exactly solvable Hamiltonians

Boris F. Samsonov, B. Van den Bossche, N. Debergh

arxiv:quant-ph/0201105 v1 · 2002-01-24 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XCTOFYXSXYR5CNYRJBVGFT5BUQ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:05:04.638681Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8a6e2e2f2be23d13711486a62cfa1a40e90e588c9c303aeabacabaf057d8ee9

Aliases

arxiv: quant-ph/0201105 · arxiv_version: quant-ph/0201105v1 · doi: 10.48550/arxiv.quant-ph/0201105 · pith_short_12: XCTOFYXSXYR5 · pith_short_16: XCTOFYXSXYR5CNYR · pith_short_8: XCTOFYXS

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/XCTOFYXSXYR5CNYRJBVGFT5BUQ \
  | 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: b8a6e2e2f2be23d13711486a62cfa1a40e90e588c9c303aeabacabaf057d8ee9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8948cf98adf521df3a35481237fceb9ab5fc0d0423598dd51fc88851a50b907",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-01-24T05:08:18Z",
    "title_canon_sha256": "12910e354b40327bc991ca0edd7815b4a2ff5a1f35ad1ce88033efc9d1e38494"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0201105",
    "kind": "arxiv",
    "version": 1
  }
}