Pith Number

pith:SQWGDLQH

pith:2017:SQWGDLQH42A7GEGG6DOJTL22FQ

not attested not anchored not stored refs pending

Well-closed subschemes of noncommutative schemes

Daniel Rogalski

arxiv:1707.07052 v1 · 2017-07-21 · math.RA · math.CT · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SQWGDLQH42A7GEGG6DOJTL22FQ}

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	2026-05-18T00:39:45.488946Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

942c61ae07e681f310c6f0dc99af5a2c365f66e437b75e50c0d9525438e736af

Aliases

arxiv: 1707.07052 · arxiv_version: 1707.07052v1 · doi: 10.48550/arxiv.1707.07052 · pith_short_12: SQWGDLQH42A7 · pith_short_16: SQWGDLQH42A7GEGG · pith_short_8: SQWGDLQH

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/SQWGDLQH42A7GEGG6DOJTL22FQ \
  | 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: 942c61ae07e681f310c6f0dc99af5a2c365f66e437b75e50c0d9525438e736af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be0270e131b553f872e5cd9e2a595b1ef00d2f5242062c1ec218f2ac9dff2359",
    "cross_cats_sorted": [
      "math.CT",
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2017-07-21T21:44:50Z",
    "title_canon_sha256": "1c591f7c7c142f821626fc32543d49c8c95ea9dec0c03a4ec1219f31f3340e94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.07052",
    "kind": "arxiv",
    "version": 1
  }
}