Pith Number

pith:T6FEOVX3

pith:2007:T6FEOVX3YMTGEXHUW2LYP5UQQM

not attested not anchored not stored refs pending

Exploring spatial nonlinearity using additive approximation

Arvid Lundervold, Dag Tj{\o}stheim, Qiwei Yao, Zudi Lu

arxiv:0708.4132 v1 · 2007-08-30 · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T6FEOVX3YMTGEXHUW2LYP5UQQM}

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	2026-05-18T01:18:18.808887Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f8a4756fbc326625cf4b69787f690830a3a1c8c6840be78f62016e47d456efc

Aliases

arxiv: 0708.4132 · arxiv_version: 0708.4132v1 · doi: 10.48550/arxiv.0708.4132 · pith_short_12: T6FEOVX3YMTG · pith_short_16: T6FEOVX3YMTGEXHU · pith_short_8: T6FEOVX3

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/T6FEOVX3YMTGEXHUW2LYP5UQQM \
  | 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: 9f8a4756fbc326625cf4b69787f690830a3a1c8c6840be78f62016e47d456efc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77e081d408fc913abd7ad640641dfb477e9c11984f7828b96b2cc901f53c795c",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "",
    "primary_cat": "math.ST",
    "submitted_at": "2007-08-30T12:00:58Z",
    "title_canon_sha256": "a59824ac19069bc1aa5f7d364cc17cd54b2e7a10feeda9eb767c87d5ba311a83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0708.4132",
    "kind": "arxiv",
    "version": 1
  }
}