Pith Number

pith:BDZEK22O

pith:2026:BDZEK22O6OCIGXC7KLZU6YJDVK

not attested not anchored not stored refs pending

Hyperinterpolation beyond exact cubature: a spectral multiplier approach

Hao-Ning Wu

arxiv:2605.17739 v1 · 2026-05-18 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BDZEK22O6OCIGXC7KLZU6YJDVK}

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	2026-05-20T00:04:55.710482Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08f2456b4ef384835c5f52f34f6123aa8a223bff3598b35de45d2ebc38238211

Aliases

arxiv: 2605.17739 · arxiv_version: 2605.17739v1 · doi: 10.48550/arxiv.2605.17739 · pith_short_12: BDZEK22O6OCI · pith_short_16: BDZEK22O6OCIGXC7 · pith_short_8: BDZEK22O

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/BDZEK22O6OCIGXC7KLZU6YJDVK \
  | 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: 08f2456b4ef384835c5f52f34f6123aa8a223bff3598b35de45d2ebc38238211

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "845613ffc66af94ab9685ff6598b670aa2dbe597760823fe1c6ad12078fa9c89",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-05-18T01:41:08Z",
    "title_canon_sha256": "d6349ebedc50508aa4a0365c3a65d1ae8730fc1457d0c8ea4e04d65f1ec709fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.17739",
    "kind": "arxiv",
    "version": 1
  }
}