Pith Number

pith:S4SNRCEY

pith:2016:S4SNRCEYTWNSJAQLFT7KN4TC43

not attested not anchored not stored refs pending

Anisotropic spline approximation with non-uniform B-splines

Nada Sissouno

arxiv:1601.05275 v4 · 2016-01-20 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S4SNRCEYTWNSJAQLFT7KN4TC43}

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	2026-05-18T00:58:34.261208Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9724d888989d9b24820b2cfea6f262e6f71bab4bbb399cff15d0bc2b8248826b

Aliases

arxiv: 1601.05275 · arxiv_version: 1601.05275v4 · doi: 10.48550/arxiv.1601.05275 · pith_short_12: S4SNRCEYTWNS · pith_short_16: S4SNRCEYTWNSJAQL · pith_short_8: S4SNRCEY

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/S4SNRCEYTWNSJAQLFT7KN4TC43 \
  | 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: 9724d888989d9b24820b2cfea6f262e6f71bab4bbb399cff15d0bc2b8248826b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b327bbc6dd8f603d5e50d96ea49db43c3341192441ab993b9b56120287814618",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2016-01-20T14:18:16Z",
    "title_canon_sha256": "03449a6d942b72e569386a5652841ab02461e3eb2b4e4dc368af9bd16bfe3d35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.05275",
    "kind": "arxiv",
    "version": 4
  }
}