Pith Number

pith:FI4DJ2AW

pith:2017:FI4DJ2AWXTUA6E3ICBWJIC2W5H

not attested not anchored not stored refs pending

Optimal selection of local approximants in RBF-PU interpolation

Alessandra De Rossi, Emma Perracchione, Roberto Cavoretto

arxiv:1703.04282 v1 · 2017-03-13 · 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{FI4DJ2AWXTUA6E3ICBWJIC2W5H}

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	2026-05-18T00:48:49.231979Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a3834e816bce80f1368106c940b56e9c46396c5e9bfc07e57d6f4c8a8afaa26

Aliases

arxiv: 1703.04282 · arxiv_version: 1703.04282v1 · doi: 10.48550/arxiv.1703.04282 · pith_short_12: FI4DJ2AWXTUA · pith_short_16: FI4DJ2AWXTUA6E3I · pith_short_8: FI4DJ2AW

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/FI4DJ2AWXTUA6E3ICBWJIC2W5H \
  | 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: 2a3834e816bce80f1368106c940b56e9c46396c5e9bfc07e57d6f4c8a8afaa26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a3e3b7753d9f8a5af82808d84c746160de15627011cdb7f12d8ead982db492a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-03-13T07:52:52Z",
    "title_canon_sha256": "aa76fe881f2fcaba35bd9a06a3a49ef5ca0c5cf0fa04c81075b3db6a9f674714"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.04282",
    "kind": "arxiv",
    "version": 1
  }
}