Pith Number

pith:N6WTUXT4

pith:2015:N6WTUXT4HSQMNBZVTAMA2ZYQ42

not attested not anchored not stored refs pending

Cartan subalgebras and the UCT problem

Sel\c{c}uk Barlak, Xin Li

arxiv:1511.02697 v3 · 2015-11-09 · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N6WTUXT4HSQMNBZVTAMA2ZYQ42}

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	2026-05-18T00:41:58.563012Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fad3a5e7c3ca0c6873598180d6710e6aae9bb0678f873b0bd75527a9e2c751c

Aliases

arxiv: 1511.02697 · arxiv_version: 1511.02697v3 · doi: 10.48550/arxiv.1511.02697 · pith_short_12: N6WTUXT4HSQM · pith_short_16: N6WTUXT4HSQMNBZV · pith_short_8: N6WTUXT4

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/N6WTUXT4HSQMNBZVTAMA2ZYQ42 \
  | 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: 6fad3a5e7c3ca0c6873598180d6710e6aae9bb0678f873b0bd75527a9e2c751c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7afc13bf6d262003b534f5dbd947ecb7e8e525a507539d4d8f627a5b17e0964f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2015-11-09T14:36:29Z",
    "title_canon_sha256": "9c9cd05a90945a17fe3525c46578b7bda2ae3d7869de9b053f2f94e80007dcd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.02697",
    "kind": "arxiv",
    "version": 3
  }
}