Pith Number

pith:QUFOUQF4

pith:2026:QUFOUQF4IK4SNATJCGWBODTIRL

not attested not anchored not stored refs pending

The Abel Summation Method and Infinite Euler Characteristic

Dan Kucerovsky, Thomas Huettemann

arxiv:2605.21373 v1 · 2026-05-20 · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QUFOUQF4IK4SNATJCGWBODTIRL}

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	2026-05-21T02:05:31.561219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

850aea40bc42b926826911ac170e688ad84946e31fd3d29198470f068363f555

Aliases

arxiv: 2605.21373 · arxiv_version: 2605.21373v1 · doi: 10.48550/arxiv.2605.21373 · pith_short_12: QUFOUQF4IK4S · pith_short_16: QUFOUQF4IK4SNATJ · pith_short_8: QUFOUQF4

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/QUFOUQF4IK4SNATJCGWBODTIRL \
  | 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: 850aea40bc42b926826911ac170e688ad84946e31fd3d29198470f068363f555

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ab752478b05b92c2e7212dcad1eb88147d10933ba11b7d4bb46f611bc19e52e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2026-05-20T16:36:42Z",
    "title_canon_sha256": "412f3f5913e8833f9d140fbb1b61b9290fec69b88c6b11810a1689485bda780a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21373",
    "kind": "arxiv",
    "version": 1
  }
}