Pith Number

pith:OUANS5GC

pith:2011:OUANS5GCW7HQZXSKC5C34DP42D

not attested not anchored not stored refs pending

Genericity of Fr\'echet smooth spaces

Ond\v{r}ej Kurka

arxiv:1109.5726 v1 · 2011-09-26 · 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{OUANS5GCW7HQZXSKC5C34DP42D}

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	2026-05-18T03:45:53.282360Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7500d974c2b7cf0cde4a1745be0dfcd0d092342763126881526a4ea7373719d9

Aliases

arxiv: 1109.5726 · arxiv_version: 1109.5726v1 · doi: 10.48550/arxiv.1109.5726 · pith_short_12: OUANS5GCW7HQ · pith_short_16: OUANS5GCW7HQZXSK · pith_short_8: OUANS5GC

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/OUANS5GCW7HQZXSKC5C34DP42D \
  | 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: 7500d974c2b7cf0cde4a1745be0dfcd0d092342763126881526a4ea7373719d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e64876cb986f2d8483d2c609d9b8f40d405bacd4c3245c9d3f92b795b36ca369",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2011-09-26T20:53:07Z",
    "title_canon_sha256": "cc928f1fff5a5febb03855c5185f0edd870f467c432875c2e1f357e57545ec82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.5726",
    "kind": "arxiv",
    "version": 1
  }
}