Pith Number

pith:RQ23WE4M

pith:2015:RQ23WE4MNG7VJ7RUBQEB4QNEKB

not attested not anchored not stored refs pending

Realization of compact spaces as cb-Helson sets

Yemon Choi

arxiv:1504.03597 v2 · 2015-04-14 · math.FA · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RQ23WE4MNG7VJ7RUBQEB4QNEKB}

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	2026-05-18T01:23:12.400621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c35bb138c69bf54fe340c081e41a450712eaae6029d2aa81d4b6639f01627c3

Aliases

arxiv: 1504.03597 · arxiv_version: 1504.03597v2 · doi: 10.48550/arxiv.1504.03597 · pith_short_12: RQ23WE4MNG7V · pith_short_16: RQ23WE4MNG7VJ7RU · pith_short_8: RQ23WE4M

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/RQ23WE4MNG7VJ7RUBQEB4QNEKB \
  | 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: 8c35bb138c69bf54fe340c081e41a450712eaae6029d2aa81d4b6639f01627c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55706dc2710ad8477c35aeeec0cfa81c9be8ed4a5c468c36a0794280dec60852",
    "cross_cats_sorted": [
      "math.OA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2015-04-14T15:58:17Z",
    "title_canon_sha256": "933331c5a5398a050eefee70ddf26dbbf94965d6a9d95b9122c4460fccf61ee2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03597",
    "kind": "arxiv",
    "version": 2
  }
}