Pith Number

pith:Y7DGZ4CR

pith:2015:Y7DGZ4CRGQHT6BOFKBCELIBD5M

not attested not anchored not stored refs pending

On filtered polynomial approximation on the sphere

Heping Wang, Ian H. Sloan

arxiv:1509.03792 v1 · 2015-09-13 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y7DGZ4CRGQHT6BOFKBCELIBD5M}

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	2026-05-18T01:33:14.526823Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7c66cf051340f3f05c5504445a023eb365a5f155c7a4c90ebde575e1dc5859b

Aliases

arxiv: 1509.03792 · arxiv_version: 1509.03792v1 · doi: 10.48550/arxiv.1509.03792 · pith_short_12: Y7DGZ4CRGQHT · pith_short_16: Y7DGZ4CRGQHT6BOF · pith_short_8: Y7DGZ4CR

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/Y7DGZ4CRGQHT6BOFKBCELIBD5M \
  | 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: c7c66cf051340f3f05c5504445a023eb365a5f155c7a4c90ebde575e1dc5859b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f68183d2b505f1731ce5f488b87cecb7c92524b923444f0b3f370a5406acd35f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2015-09-13T01:23:25Z",
    "title_canon_sha256": "9d10c63c5c090ac5832f9fb4320842e82ae31bfc2fa3383d56b62acfe5599831"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.03792",
    "kind": "arxiv",
    "version": 1
  }
}