Pith Number

pith:FROPZQRN

pith:2017:FROPZQRNQQQNSHRCV4BEGU6NY6

not attested not anchored not stored refs pending

Real-Root Preserving Differential Operator Representations of Orthogonal Polynomials

David A. Cardon, Evan L. Sorensen, Jason C. White

arxiv:1707.05412 v1 · 2017-07-17 · 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{FROPZQRNQQQNSHRCV4BEGU6NY6}

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	2026-05-18T00:40:02.418406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c5cfcc22d8420d91e22af024353cdc7926d6f1428fdcf53a2fbef6751d45e20

Aliases

arxiv: 1707.05412 · arxiv_version: 1707.05412v1 · doi: 10.48550/arxiv.1707.05412 · pith_short_12: FROPZQRNQQQN · pith_short_16: FROPZQRNQQQNSHRC · pith_short_8: FROPZQRN

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/FROPZQRNQQQNSHRCV4BEGU6NY6 \
  | 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: 2c5cfcc22d8420d91e22af024353cdc7926d6f1428fdcf53a2fbef6751d45e20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6824d1d3b8d329c7852af8ff71edec85d65d643c2ee0e819248d8d52108925e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2017-07-17T23:27:08Z",
    "title_canon_sha256": "08d58e1c07a796bafc6c37c8d02fc2b0f5746e741faaa100c48c4ad3e594f213"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.05412",
    "kind": "arxiv",
    "version": 1
  }
}