Pith Number

pith:HW4TX3AV

pith:2015:HW4TX3AVAEJWAOHZ3ODKKOJVOL

not attested not anchored not stored refs pending

Nonlinear Piecewise Polynomial Approximation and Multivariate $BV$ spaces of a Wiener--L.~Young Type. I

Yu. Brudnyi

arxiv:1511.03971 v1 · 2015-11-12 · math.CA · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HW4TX3AVAEJWAOHZ3ODKKOJVOL}

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	2026-05-18T01:27:06.346033Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3db93bec1501136038f9db86a5393572e1dfde1a3662c13e088b2c2dc8a1f36d

Aliases

arxiv: 1511.03971 · arxiv_version: 1511.03971v1 · doi: 10.48550/arxiv.1511.03971 · pith_short_12: HW4TX3AVAEJW · pith_short_16: HW4TX3AVAEJWAOHZ · pith_short_8: HW4TX3AV

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/HW4TX3AVAEJWAOHZ3ODKKOJVOL \
  | 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: 3db93bec1501136038f9db86a5393572e1dfde1a3662c13e088b2c2dc8a1f36d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "413783dd1bdb50bf41eccc8a0e6375a373349a265d6bfe600126101ca66140b0",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2015-11-12T17:06:33Z",
    "title_canon_sha256": "3911323a4c1cd735109aa99bca7c0da0cffeb3c81971d86b87d66bf0275e10f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.03971",
    "kind": "arxiv",
    "version": 1
  }
}