Pith Number

pith:B2HLB3B5

pith:2019:B2HLB3B5IA6EYRCDXFCXPIUR6F

not attested not anchored not stored refs pending

A note on weak-star and norm Borel sets in the dual of the space of continuous functions

S. Ferrari

arxiv:1907.00679 v1 · 2019-07-01 · math.FA · 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{B2HLB3B5IA6EYRCDXFCXPIUR6F}

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	2026-07-05T02:46:57.587106Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e8eb0ec3d403c4c4443b94577a291f16d5eb1d599c8cfb81f6b62dbbdc8014a

Aliases

arxiv: 1907.00679 · arxiv_version: 1907.00679v1 · doi: 10.48550/arxiv.1907.00679 · pith_short_12: B2HLB3B5IA6E · pith_short_16: B2HLB3B5IA6EYRCD · pith_short_8: B2HLB3B5

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/B2HLB3B5IA6EYRCDXFCXPIUR6F \
  | 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: 0e8eb0ec3d403c4c4443b94577a291f16d5eb1d599c8cfb81f6b62dbbdc8014a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "faa6c5c801e20b5c236401449b57dac9ed341531884e3ed0b6aaa04ab7903d96",
    "cross_cats_sorted": [
      "math.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2019-07-01T12:06:26Z",
    "title_canon_sha256": "0942488ab27ed431c9ff869f9badfcbe4933514896819bda70b8c58619c786ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.00679",
    "kind": "arxiv",
    "version": 1
  }
}