Pith Number

pith:G4PLVJTE

pith:2013:G4PLVJTE7LH3YK6IHPV7RHUE7S

not attested not anchored not stored refs pending

Avoiding \sigma-porous sets in Hilbert spaces

Michael Dymond

arxiv:1308.6420 v2 · 2013-08-29 · 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{G4PLVJTE7LH3YK6IHPV7RHUE7S}

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	2026-05-18T03:04:37.250926Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

371ebaa664facfbc2bc83bebf89e84fc86a234c6c3526c927c56ff2bd362af7d

Aliases

arxiv: 1308.6420 · arxiv_version: 1308.6420v2 · doi: 10.48550/arxiv.1308.6420 · pith_short_12: G4PLVJTE7LH3 · pith_short_16: G4PLVJTE7LH3YK6I · pith_short_8: G4PLVJTE

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/G4PLVJTE7LH3YK6IHPV7RHUE7S \
  | 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: 371ebaa664facfbc2bc83bebf89e84fc86a234c6c3526c927c56ff2bd362af7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b3b72054f8813aba208d8897b103bf1ddab263cb78def080e10c529db12f675",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2013-08-29T10:25:20Z",
    "title_canon_sha256": "30bb3173b2ebbd22989a392186163053c40224e310e79c84fb124451936968ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.6420",
    "kind": "arxiv",
    "version": 2
  }
}