Pith Number

pith:EYME4NNN

pith:2011:EYME4NNN7DDFCZVXQFSNLHO6GE

not attested not anchored not stored refs pending

Properties of Matrix Orthogonal Polynomials via their Riemann-Hilbert Characterization

Andrei Martinez-Finkelshtein, F. Alberto Gr\"unbaum, Manuel D. de la Iglesia

arxiv:1106.1307 v3 · 2011-06-07 · math.CA · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EYME4NNN7DDFCZVXQFSNLHO6GE}

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	2026-05-18T04:10:23.366597Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26184e35adf8c65166b78164d59dde3115b9776fbd0743794aee19726d5ad7f8

Aliases

arxiv: 1106.1307 · arxiv_version: 1106.1307v3 · doi: 10.48550/arxiv.1106.1307 · pith_short_12: EYME4NNN7DDF · pith_short_16: EYME4NNN7DDFCZVX · pith_short_8: EYME4NNN

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/EYME4NNN7DDFCZVXQFSNLHO6GE \
  | 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: 26184e35adf8c65166b78164d59dde3115b9776fbd0743794aee19726d5ad7f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bec946e542de0257fb9da88ff8d4d73f34f2a32623884d16edf9334a29e4073",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2011-06-07T10:26:33Z",
    "title_canon_sha256": "d4ba55de7e14cfa12398252c154c44604469d75308d38bc5e97ae3aeac326351"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.1307",
    "kind": "arxiv",
    "version": 3
  }
}