Pith Number

pith:P32QC4LH

pith:2026:P32QC4LHXFPXT4CXL3K2472LNE

not attested not anchored not stored refs pending

Topological singular set of manifold-valued maps weakly approximable by smooth maps

Giacomo Canevari, Giandomenico Orlandi

arxiv:2605.28622 v1 · 2026-05-27 · 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{P32QC4LHXFPXT4CXL3K2472LNE}

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	2026-05-28T02:04:58.012631Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ef5017167b95f79f0575ed5ae7f4b6939de6e406401b4494d5f692f562845f5

Aliases

arxiv: 2605.28622 · arxiv_version: 2605.28622v1 · doi: 10.48550/arxiv.2605.28622 · pith_short_12: P32QC4LHXFPX · pith_short_16: P32QC4LHXFPXT4CX · pith_short_8: P32QC4LH

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/P32QC4LHXFPXT4CXL3K2472LNE \
  | 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: 7ef5017167b95f79f0575ed5ae7f4b6939de6e406401b4494d5f692f562845f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af0ca1666eda1e5d9330b02fcd29d351f7fd53ed550eed2bcbfb3191b9e70daf",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2026-05-27T15:30:34Z",
    "title_canon_sha256": "e8559b9966a19ee05525079e6581947df250c618745b07ad7fe066dbd1495879"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.28622",
    "kind": "arxiv",
    "version": 1
  }
}