Pith Number

pith:SDHL2AMY

pith:2010:SDHL2AMYNTKHRZUP4B5YGGYO5P

not attested not anchored not stored refs pending

Optimally space localized polynomials with applications in signal processing

Wolfgang Erb

arxiv:1008.1525 v1 · 2010-08-05 · math.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{SDHL2AMYNTKHRZUP4B5YGGYO5P}

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	2026-05-18T04:42:24.066608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90cebd01986cd478e68fe07b831b0eebefd54d3a123d3395a25fb72bd2de6203

Aliases

arxiv: 1008.1525 · arxiv_version: 1008.1525v1 · doi: 10.48550/arxiv.1008.1525 · pith_short_12: SDHL2AMYNTKH · pith_short_16: SDHL2AMYNTKHRZUP · pith_short_8: SDHL2AMY

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/SDHL2AMYNTKHRZUP4B5YGGYO5P \
  | 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: 90cebd01986cd478e68fe07b831b0eebefd54d3a123d3395a25fb72bd2de6203

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80d43b628421a898c4bb1de92063559e9c1c5d55aa4983eba721a44155b37db4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2010-08-05T14:48:52Z",
    "title_canon_sha256": "7cf09c8f0c799aa056206baf318073358f683b19197157129c9b78bf42c76540"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.1525",
    "kind": "arxiv",
    "version": 1
  }
}