Pith Number

pith:YFKWAWXN

pith:2017:YFKWAWXNG55ZTX72XAAHTRKCZD

not attested not anchored not stored refs pending

Multilevel weighted least squares polynomial approximation

Abdul-Lateef Haji-Ali, Fabio Nobile, Ra\'ul Tempone, S\"oren Wolfers

arxiv:1707.00026 v3 · 2017-06-30 · 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{YFKWAWXNG55ZTX72XAAHTRKCZD}

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	2026-05-18T00:33:31.932639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c155605aed377b99dffab80079c542c8ca8bd040b3bf141c73260905267e42bd

Aliases

arxiv: 1707.00026 · arxiv_version: 1707.00026v3 · doi: 10.48550/arxiv.1707.00026 · pith_short_12: YFKWAWXNG55Z · pith_short_16: YFKWAWXNG55ZTX72 · pith_short_8: YFKWAWXN

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/YFKWAWXNG55ZTX72XAAHTRKCZD \
  | 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: c155605aed377b99dffab80079c542c8ca8bd040b3bf141c73260905267e42bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9da69188f164e16510da611f0e7d24b330680f22995788d38b4b1ae512184fa2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-06-30T19:08:07Z",
    "title_canon_sha256": "3c669bfcc6503cc50fc25b8c7924c7717752e1d7f535f3054570c70b1e896737"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.00026",
    "kind": "arxiv",
    "version": 3
  }
}