Pith Number

pith:VGCBAWI3

pith:2018:VGCBAWI3JKUKBZGRXGOAQYOJVB

not attested not anchored not stored refs pending

A Numerical Model for the Construction of Finite Blaschke Products with Preassigned Distinct Critical Points

Christer Glader, Ray P\"orn

arxiv:1803.06211 v1 · 2018-03-16 · math.NA · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VGCBAWI3JKUKBZGRXGOAQYOJVB}

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	2026-05-18T00:20:50.285187Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a98410591b4aa8a0e4d1b99c0861c9a8435997168b3a2078cc2cb57d93ec8cbd

Aliases

arxiv: 1803.06211 · arxiv_version: 1803.06211v1 · doi: 10.48550/arxiv.1803.06211 · pith_short_12: VGCBAWI3JKUK · pith_short_16: VGCBAWI3JKUKBZGR · pith_short_8: VGCBAWI3

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/VGCBAWI3JKUKBZGRXGOAQYOJVB \
  | 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: a98410591b4aa8a0e4d1b99c0861c9a8435997168b3a2078cc2cb57d93ec8cbd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9866100568b54adf9d003c69c401a8da6ead8c4f42f157ffaf8e26f158c295f",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-03-16T13:24:11Z",
    "title_canon_sha256": "5191c20796a22c247921d59d13340af090848ed5cf80e18533aa938ded4fb7a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.06211",
    "kind": "arxiv",
    "version": 1
  }
}