Pith Number

pith:PG5OT45G

pith:2019:PG5OT45GYL7IEEUNIXF2WMTTIM

not attested not anchored not stored refs pending

Combinatorial study of stable categories of graded Cohen--Macaulay modules over skew quadric hypersurfaces

Akihiro Higashitani, Kenta Ueyama

arxiv:1910.10612 v2 · 2019-10-23 · math.RA · math.CO · 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{PG5OT45GYL7IEEUNIXF2WMTTIM}

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	2026-07-05T01:59:26.856857Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79bae9f3a6c2fe82128d45cbab3273430326e71467a8bdc718c241ed71a05094

Aliases

arxiv: 1910.10612 · arxiv_version: 1910.10612v2 · doi: 10.48550/arxiv.1910.10612 · pith_short_12: PG5OT45GYL7I · pith_short_16: PG5OT45GYL7IEEUN · pith_short_8: PG5OT45G

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/PG5OT45GYL7IEEUNIXF2WMTTIM \
  | 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: 79bae9f3a6c2fe82128d45cbab3273430326e71467a8bdc718c241ed71a05094

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87132473fa84024a805b14bb0122b55bb60bb55a1a377a9f9201e796f674993a",
    "cross_cats_sorted": [
      "math.CO",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2019-10-23T15:29:43Z",
    "title_canon_sha256": "e90532f86684f1552dc0557dd82369e2748e2b738fa6aeb854c3099ced0d6d1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.10612",
    "kind": "arxiv",
    "version": 2
  }
}