Pith Number

pith:QXJOTVVK

pith:2019:QXJOTVVK4Z6T4HOJEQQEB4LTIE

not attested not anchored not stored refs pending

On the Bounds of Function Approximations

Adrian de Wynter

arxiv:1908.09942 v1 · 2019-08-26 · cs.LG · cs.CC · cs.NE · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QXJOTVVK4Z6T4HOJEQQEB4LTIE}

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	2026-07-05T00:04:29.820496Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85d2e9d6aae67d3e1dc9242040f1734100d0d526929d0cc5fc8d3dc7e2bce7e0

Aliases

arxiv: 1908.09942 · arxiv_version: 1908.09942v1 · doi: 10.48550/arxiv.1908.09942 · pith_short_12: QXJOTVVK4Z6T · pith_short_16: QXJOTVVK4Z6T4HOJ · pith_short_8: QXJOTVVK

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/QXJOTVVK4Z6T4HOJEQQEB4LTIE \
  | 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: 85d2e9d6aae67d3e1dc9242040f1734100d0d526929d0cc5fc8d3dc7e2bce7e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f425c1a7af7153d62c5c8a10dc9f359b42d1d70bf598723ad4b47e60d7bb0ba1",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.NE",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-08-26T22:32:33Z",
    "title_canon_sha256": "f2a6a17b7ef1294483d8e86cd346f6440a944c45d8a360b4e4410e361487778a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.09942",
    "kind": "arxiv",
    "version": 1
  }
}