Pith Number

pith:FQR7KQXB

pith:2002:FQR7KQXBNKELIAKVQIDI7T4MUO

not attested not anchored not stored refs pending

A Family of Quasi-solvable Quantum Many-body Systems

Toshiaki Tanaka

arxiv:hep-th/0202101 v2 · 2002-02-16 · hep-th · math-ph · math.MP · nlin.SI · 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{FQR7KQXBNKELIAKVQIDI7T4MUO}

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	2026-05-18T02:36:11.151680Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c23f542e16a88b4015582068fcf8ca39de0bd9a74cefa87dde3bffb4048f25e

Aliases

arxiv: hep-th/0202101 · arxiv_version: hep-th/0202101v2 · doi: 10.48550/arxiv.hep-th/0202101 · pith_short_12: FQR7KQXBNKEL · pith_short_16: FQR7KQXBNKELIAKV · pith_short_8: FQR7KQXB

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/FQR7KQXBNKELIAKVQIDI7T4MUO \
  | 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: 2c23f542e16a88b4015582068fcf8ca39de0bd9a74cefa87dde3bffb4048f25e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c65e345de890250c21b5372194e3d576f92b43f9f5dcdfe2694d3187b4d2951b",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "nlin.SI",
      "quant-ph"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2002-02-16T12:46:16Z",
    "title_canon_sha256": "3c7a6b48129c1040c8e8dd69a9acbde53c367e4d956dfb7e06a533a7df9b4d11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0202101",
    "kind": "arxiv",
    "version": 2
  }
}