Pith Number

pith:UMCZVG2D

pith:2019:UMCZVG2DGK354GIVBXROFVBN55

not attested not anchored not stored refs pending

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

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

arxiv:1907.03156 v1 · 2019-07-06 · math.CA · math-ph · math.MP

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\usepackage{pith}
\pithnumber{UMCZVG2DGK354GIVBXROFVBN55}

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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	2026-05-17T23:41:18.784930Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3059a9b4332b7de19150de2e2d42def420fea5eeb4937b395f45d265eb6f202

Aliases

arxiv: 1907.03156 · arxiv_version: 1907.03156v1 · doi: 10.48550/arxiv.1907.03156 · pith_short_12: UMCZVG2DGK35 · pith_short_16: UMCZVG2DGK354GIV · pith_short_8: UMCZVG2D

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/UMCZVG2DGK354GIVBXROFVBN55 \
  | 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: a3059a9b4332b7de19150de2e2d42def420fea5eeb4937b395f45d265eb6f202

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f34eb9aef3bc4dd9025de39014979c81b6fe00d6db1e1c42c995b7680689d182",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2019-07-06T17:06:44Z",
    "title_canon_sha256": "ff40be179f93607dff4c140e6505d1ac607e9c297b97d03c8a7eb320bbc1a152"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.03156",
    "kind": "arxiv",
    "version": 1
  }
}