Pith Number

pith:UE27WZ7O

pith:2018:UE27WZ7OLVGHQX7CUD2WGKYCN2

not attested not anchored not stored refs pending

Uniform recovery of high-dimensional $C^r$-functions

David Krieg

arxiv:1805.06220 v2 · 2018-05-16 · 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{UE27WZ7OLVGHQX7CUD2WGKYCN2}

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	2026-05-18T00:03:55.956013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a135fb67ee5d4c785fe2a0f5632b026e85113af7de7018d5e4189e9bc6ba91ce

Aliases

arxiv: 1805.06220 · arxiv_version: 1805.06220v2 · doi: 10.48550/arxiv.1805.06220 · pith_short_12: UE27WZ7OLVGH · pith_short_16: UE27WZ7OLVGHQX7C · pith_short_8: UE27WZ7O

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/UE27WZ7OLVGHQX7CUD2WGKYCN2 \
  | 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: a135fb67ee5d4c785fe2a0f5632b026e85113af7de7018d5e4189e9bc6ba91ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17623d4e5ad25bf5d54f65a1598a7e9a923d2e6ed65010f5b473e9df3a1c2961",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-05-16T10:03:31Z",
    "title_canon_sha256": "5b00704a3b1671294020d94d27a4bddacf1fc8f1959a7dd647a243a81ef043a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.06220",
    "kind": "arxiv",
    "version": 2
  }
}