Pith Number

pith:FLXMEBXQ

pith:2018:FLXMEBXQIAZS3QSAM34UEEHXQN

not attested not anchored not stored refs pending

Matrix Biorthogonal Polynomials: eigenvalue problems and non-Abelian discrete Painlev\'e equations

Amilcar Branquinho, Ana Foulqui\'e Moreno, Manuel Ma\~nas

arxiv:1807.07119 v1 · 2018-07-18 · math.CA · math-ph · math.MP · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FLXMEBXQIAZS3QSAM34UEEHXQN}

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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.

Cited by

1 paper in Pith

Riemann-Hilbert Problem for the Matrix Laguerre Biorthogonal Polynomials: Eigenvalue Problems and the Matrix Discrete Painlev\'e IV

Receipt and verification

First computed	2026-05-18T00:10:21.267052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2aeec206f040332dc24066f94210f7836b0589b2632b76388b9f3379804a44da

Aliases

arxiv: 1807.07119 · arxiv_version: 1807.07119v1 · doi: 10.48550/arxiv.1807.07119 · pith_short_12: FLXMEBXQIAZS · pith_short_16: FLXMEBXQIAZS3QSA · pith_short_8: FLXMEBXQ

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/FLXMEBXQIAZS3QSAM34UEEHXQN \
  | 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: 2aeec206f040332dc24066f94210f7836b0589b2632b76388b9f3379804a44da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e89795491aea622c91f3a9ebbb812c81504a8ae1e6a13149e650d8a0f7a2c33e",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "nlin.SI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2018-07-18T19:42:47Z",
    "title_canon_sha256": "9d4311dd73506874e060ca8f6f8c2b620c395104a65c9f04172d829377d16898"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.07119",
    "kind": "arxiv",
    "version": 1
  }
}