Pith Number

pith:D5XDE3HI

pith:2019:D5XDE3HIZPDM2OTPHMOSUGVVGP

not attested not anchored not stored refs pending

Split bounded extension algebras and Han's conjecture

Andrea Solotar, Claude Cibils, Eduardo N. Marcos, Marcelo Lanzilotta

arxiv:1908.11130 v3 · 2019-08-29 · math.KT · math.RA · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D5XDE3HIZPDM2OTPHMOSUGVVGP}

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	2026-07-05T02:18:27.751746Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f6e326ce8cbc6cd3a6f3b1d2a1ab533d197620e7811723aca71ee12259980a5

Aliases

arxiv: 1908.11130 · arxiv_version: 1908.11130v3 · doi: 10.48550/arxiv.1908.11130 · pith_short_12: D5XDE3HIZPDM · pith_short_16: D5XDE3HIZPDM2OTP · pith_short_8: D5XDE3HI

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/D5XDE3HIZPDM2OTPHMOSUGVVGP \
  | 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: 1f6e326ce8cbc6cd3a6f3b1d2a1ab533d197620e7811723aca71ee12259980a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d01ed67896adcb0bbf1db4205555b8d275ff3829ea43f5a35f5821b70212c430",
    "cross_cats_sorted": [
      "math.RA",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2019-08-29T09:57:46Z",
    "title_canon_sha256": "4fe9c7f3579e972252b2af4deb46f2ad5e1474d4dec99da2b8adb38657ba2df5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.11130",
    "kind": "arxiv",
    "version": 3
  }
}