Pith Number

pith:KD4U4NUY

pith:2017:KD4U4NUYOFTU23DXXEBJF2M3QG

not attested not anchored not stored refs pending

Inequalities similar to those of Bernstein for non-periodic splines in $L_2$ space

Susanna Spektor, Vladislav Babenko

arxiv:1708.08110 v1 · 2017-08-27 · 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{KD4U4NUYOFTU23DXXEBJF2M3QG}

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	2026-05-18T00:36:36.986782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50f94e369871674d6c77b90292e99b81be847a08a213836fa121f26a163350b4

Aliases

arxiv: 1708.08110 · arxiv_version: 1708.08110v1 · doi: 10.48550/arxiv.1708.08110 · pith_short_12: KD4U4NUYOFTU · pith_short_16: KD4U4NUYOFTU23DX · pith_short_8: KD4U4NUY

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/KD4U4NUYOFTU23DXXEBJF2M3QG \
  | 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: 50f94e369871674d6c77b90292e99b81be847a08a213836fa121f26a163350b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "740f34ca38422d604ff34ed2b0497fe721f9f32fe51ef0ecd3f5053514a34e38",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2017-08-27T17:06:07Z",
    "title_canon_sha256": "3d7621d38044125334d74ae988322f9975766d9637a50925984e2e348e1ade25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.08110",
    "kind": "arxiv",
    "version": 1
  }
}