Pith Number

pith:5EP5ELQR

pith:2014:5EP5ELQRSOPT6F2EUSOHMUU4YH

not attested not anchored not stored refs pending

Constrained Spline Smoothing

A. Prymak, D. Leviatan, K. Kopotun

arxiv:1403.7983 v1 · 2014-03-31 · math.NA · 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{5EP5ELQRSOPT6F2EUSOHMUU4YH}

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	2026-05-18T02:55:12.028549Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e91fd22e11939f3f1744a49c76529cc1cf77806b1abea3be0c185c4da4cc3b60

Aliases

arxiv: 1403.7983 · arxiv_version: 1403.7983v1 · doi: 10.48550/arxiv.1403.7983 · pith_short_12: 5EP5ELQRSOPT · pith_short_16: 5EP5ELQRSOPT6F2E · pith_short_8: 5EP5ELQR

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/5EP5ELQRSOPT6F2EUSOHMUU4YH \
  | 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: e91fd22e11939f3f1744a49c76529cc1cf77806b1abea3be0c185c4da4cc3b60

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5c07c75a850241ad906cd68d1e81bad4908712f9dcacdb2b9118ea74a50240b",
    "cross_cats_sorted": [
      "math.CA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-03-31T13:08:35Z",
    "title_canon_sha256": "6d487f261d89a496f8e1c919a25aa852154ec115b3256aacfed920b92d1ae84b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.7983",
    "kind": "arxiv",
    "version": 1
  }
}