Pith Number

pith:LRWAFULU

pith:2016:LRWAFULUNQYO5RCAQYCBYWV4PZ

not attested not anchored not stored refs pending

Interpolation of data by smooth non-negative functions

Arie Israel, Charles Fefferman, Garving K. Luli

arxiv:1603.02330 v1 · 2016-03-07 · math.CA · math.NA · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LRWAFULUNQYO5RCAQYCBYWV4PZ}

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	2026-05-18T01:19:23.668566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c6c02d1746c30eec44086041c5abc7e677a6618fa5a671f890d74c3e1e94e43

Aliases

arxiv: 1603.02330 · arxiv_version: 1603.02330v1 · doi: 10.48550/arxiv.1603.02330 · pith_short_12: LRWAFULUNQYO · pith_short_16: LRWAFULUNQYO5RCA · pith_short_8: LRWAFULU

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/LRWAFULUNQYO5RCAQYCBYWV4PZ \
  | 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: 5c6c02d1746c30eec44086041c5abc7e677a6618fa5a671f890d74c3e1e94e43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65b038219278e22b0556bc741d2f3e433d18f34743262c9fa45b38174a0dfb29",
    "cross_cats_sorted": [
      "math.NA",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2016-03-07T22:37:49Z",
    "title_canon_sha256": "ab3efe604ff9cf419475e8a5b28b06b313d1314790047539cdc5225ccb7bf5a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.02330",
    "kind": "arxiv",
    "version": 1
  }
}