Pith Number

pith:ZR7NHB3H

pith:2016:ZR7NHB3H754LE4MNKWDQQMMSO3

not attested not anchored not stored refs pending

Extending Baire-one functions on compact spaces

Olena Karlova, Volodymyr Mykhaylyuk

arxiv:1701.00075 v1 · 2016-12-31 · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZR7NHB3H754LE4MNKWDQQMMSO3}

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	2026-05-18T00:53:39.487902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc7ed38767ff78b2718d558708319276c32bb4425e7de6668ecf9c43b6b36bdf

Aliases

arxiv: 1701.00075 · arxiv_version: 1701.00075v1 · doi: 10.48550/arxiv.1701.00075 · pith_short_12: ZR7NHB3H754L · pith_short_16: ZR7NHB3H754LE4MN · pith_short_8: ZR7NHB3H

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/ZR7NHB3H754LE4MNKWDQQMMSO3 \
  | 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: cc7ed38767ff78b2718d558708319276c32bb4425e7de6668ecf9c43b6b36bdf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72fdebeeddf10cba6cb5c38441a27dae2e124060019921b75ac01ed9f952c34f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2016-12-31T09:01:21Z",
    "title_canon_sha256": "63f08f98263ce676ad719b18d2e5259181588ed7726968d9012a9ceef13cb024"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.00075",
    "kind": "arxiv",
    "version": 1
  }
}