Pith Number

pith:Z4FIGPGO

pith:2016:Z4FIGPGO3DUHNE4TSTAGPHUJM3

not attested not anchored not stored refs pending

Surjective Kuiper isometries

Gy\"orgy P\'al Geh\'er

arxiv:1606.06465 v2 · 2016-06-21 · 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{Z4FIGPGO3DUHNE4TSTAGPHUJM3}

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	2026-05-18T00:52:23.171891Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf0a833cced8e876939394c0679e8966fe8a0bf5bf7eefb1fb97caa1e1824ee4

Aliases

arxiv: 1606.06465 · arxiv_version: 1606.06465v2 · doi: 10.48550/arxiv.1606.06465 · pith_short_12: Z4FIGPGO3DUH · pith_short_16: Z4FIGPGO3DUHNE4T · pith_short_8: Z4FIGPGO

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/Z4FIGPGO3DUHNE4TSTAGPHUJM3 \
  | 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: cf0a833cced8e876939394c0679e8966fe8a0bf5bf7eefb1fb97caa1e1824ee4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "931d979f6fe2fb4f909d7a363e920fd0468d7a005c6ce5e260c2fbecdf7229d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2016-06-21T08:00:19Z",
    "title_canon_sha256": "4ef02a098bc916bd0fa5d3f540542b144484a4757de5758881ff8b070a6c909e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.06465",
    "kind": "arxiv",
    "version": 2
  }
}