Pith Number

pith:LEDP2KCY

pith:2007:LEDP2KCYNCOSB565X7KK5VHPL3

not attested not anchored not stored refs pending

Approximation orders for interpolation by surface splines to rough functions

R. A. Brownlee, W. A. Light

arxiv:0705.4281 v1 · 2007-05-30 · 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{LEDP2KCYNCOSB565X7KK5VHPL3}

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	2026-06-03T22:06:00.971224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5906fd2858689d20f7ddbfd4aed4ef5ec4b1aad5ee5a865a5af5548d8820e433

Aliases

arxiv: 0705.4281 · arxiv_version: 0705.4281v1 · doi: 10.48550/arxiv.0705.4281 · pith_short_12: LEDP2KCYNCOS · pith_short_16: LEDP2KCYNCOSB565 · pith_short_8: LEDP2KCY

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/LEDP2KCYNCOSB565X7KK5VHPL3 \
  | 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: 5906fd2858689d20f7ddbfd4aed4ef5ec4b1aad5ee5a865a5af5548d8820e433

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80cd55e79c550467ce1ab99c6d18bea6baca58f5b7b418de269424b40e3774a1",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "",
    "primary_cat": "math.NA",
    "submitted_at": "2007-05-30T16:37:55Z",
    "title_canon_sha256": "b8ba090482f382f780cf65c40b4e2098f833a1264ef5001337aa5c8ce059fd9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.4281",
    "kind": "arxiv",
    "version": 1
  }
}