Pith Number

pith:5EE4GCX7

pith:2015:5EE4GCX7NLTBMMQIZL4UC4BZ7Y

not attested not anchored not stored refs pending

Preserving affine Baire classes by perfect affine maps

Ji\v{r}\'i Spurn\'y, Ond\v{r}ej F.K. Kalenda

arxiv:1501.05118 v1 · 2015-01-21 · 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{5EE4GCX7NLTBMMQIZL4UC4BZ7Y}

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	2026-05-18T01:06:24.722367Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e909c30aff6ae6163208caf9417039fe180fce234d5c689e55d71b859df1bd50

Aliases

arxiv: 1501.05118 · arxiv_version: 1501.05118v1 · doi: 10.48550/arxiv.1501.05118 · pith_short_12: 5EE4GCX7NLTB · pith_short_16: 5EE4GCX7NLTBMMQI · pith_short_8: 5EE4GCX7

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/5EE4GCX7NLTBMMQIZL4UC4BZ7Y \
  | 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: e909c30aff6ae6163208caf9417039fe180fce234d5c689e55d71b859df1bd50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd9ae1d6e623c92c8613a9b5b5146e7815bf68827bcde702e2b76252ede30dfb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2015-01-21T10:35:07Z",
    "title_canon_sha256": "6de6854f774a0a2cb3a68f8f1ccfb125b650e2c8b584378859e5f3519aa03b46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.05118",
    "kind": "arxiv",
    "version": 1
  }
}