Pith Number

pith:HAMEFI4N

pith:2022:HAMEFI4NNSXYP5XGYEO3CFGCKT

not attested not anchored not stored refs pending

Which cluster morphism categories are CAT(0)

Gordana Todorov, Kiyoshi Igusa

arxiv:2203.16679 v1 · 2022-03-30 · 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{HAMEFI4NNSXYP5XGYEO3CFGCKT}

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.

Cited by

1 paper in Pith

Mutating ordered $\tau$-rigid modules with applications to Nakayama algebras

Receipt and verification

First computed	2026-07-05T04:10:14.801764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

381842a38d6caf87f6e6c11db114c254dd755958fc71dd383fe3cef07968541c

Aliases

arxiv: 2203.16679 · arxiv_version: 2203.16679v1 · doi: 10.48550/arxiv.2203.16679 · pith_short_12: HAMEFI4NNSXY · pith_short_16: HAMEFI4NNSXYP5XG · pith_short_8: HAMEFI4N

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/HAMEFI4NNSXYP5XGYEO3CFGCKT \
  | 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: 381842a38d6caf87f6e6c11db114c254dd755958fc71dd383fe3cef07968541c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11537888dad62086f1b04b0679a7ad23216b29094d79b362945f29ff73892912",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2022-03-30T21:24:38Z",
    "title_canon_sha256": "fb31a0bb47346a59049222aeba3be602c4ab4c7cc8a63038e5a7f3e376de1f0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.16679",
    "kind": "arxiv",
    "version": 1
  }
}