Pith Number

pith:FSBI7C62

pith:2026:FSBI7C62AUVKQF7W4AXQGB4W5J

not attested not anchored not stored refs pending

Pathological function spaces and an unsolved Analysis I problem

Thomas Ransford

arxiv:2606.09807 v1 · 2026-06-08 · math.CV · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FSBI7C62AUVKQF7W4AXQGB4W5J}

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	2026-06-09T02:09:11.012858Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c828f8bda052aa817f6e02f030796ea7c2e9f64fd678806c6c2e138e090cc66

Aliases

arxiv: 2606.09807 · arxiv_version: 2606.09807v1 · doi: 10.48550/arxiv.2606.09807 · pith_short_12: FSBI7C62AUVK · pith_short_16: FSBI7C62AUVKQF7W · pith_short_8: FSBI7C62

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/FSBI7C62AUVKQF7W4AXQGB4W5J \
  | 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: 2c828f8bda052aa817f6e02f030796ea7c2e9f64fd678806c6c2e138e090cc66

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "011955af2c9ff30e688142427cacbd70b6fb0f3981ff2314baa403560f3edbb1",
    "cross_cats_sorted": [
      "math.CA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2026-06-08T17:54:40Z",
    "title_canon_sha256": "99634addd9cf259ff2c1077fa7e160f664f96bdb89bbd594a66c993d68bbb4e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.09807",
    "kind": "arxiv",
    "version": 1
  }
}