Pith Number

pith:G2HX6ASX

pith:2010:G2HX6ASXB7EP5UELUD7HS4ZJ7R

not attested not anchored not stored refs pending

The Jacobi matrices approach to Nevanlinna-Pick problems

Maxim Derevyagin

arxiv:1005.3721 v2 · 2010-05-20 · math.CA · math.CV · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{G2HX6ASXB7EP5UELUD7HS4ZJ7R}

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	2026-05-18T04:41:55.779676Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

368f7f02570fc8fed08ba0fe797329fc55c08ec7353eebd18c0e0d6cb1aab8a6

Aliases

arxiv: 1005.3721 · arxiv_version: 1005.3721v2 · doi: 10.48550/arxiv.1005.3721 · pith_short_12: G2HX6ASXB7EP · pith_short_16: G2HX6ASXB7EP5UEL · pith_short_8: G2HX6ASX

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/G2HX6ASXB7EP5UELUD7HS4ZJ7R \
  | 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: 368f7f02570fc8fed08ba0fe797329fc55c08ec7353eebd18c0e0d6cb1aab8a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e12835cc0e3ce5a26475bc0fd39fc66cde8aa80ebb5c242c8b5cf920c9d4eb4",
    "cross_cats_sorted": [
      "math.CV",
      "math.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2010-05-20T14:52:39Z",
    "title_canon_sha256": "305193728cb4317546c93aa8124883691ecc108b74b6f7b5afdec68da234af06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.3721",
    "kind": "arxiv",
    "version": 2
  }
}