Pith Number

pith:7HULWL7G

pith:2013:7HULWL7G2MVQJ3RYWGPN6SCVG5

not attested not anchored not stored refs pending

Stratifying systems over hereditary algebras

Eduardo do N. Marcos, Paula A. Cadavid

arxiv:1308.5547 v1 · 2013-08-26 · 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{7HULWL7G2MVQJ3RYWGPN6SCVG5}

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	2026-05-18T03:15:04.173234Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9e8bb2fe6d32b04ee38b19edf48553761ca1605337c4529c7bf78eb12e302f6

Aliases

arxiv: 1308.5547 · arxiv_version: 1308.5547v1 · doi: 10.48550/arxiv.1308.5547 · pith_short_12: 7HULWL7G2MVQ · pith_short_16: 7HULWL7G2MVQJ3RY · pith_short_8: 7HULWL7G

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/7HULWL7G2MVQJ3RYWGPN6SCVG5 \
  | 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: f9e8bb2fe6d32b04ee38b19edf48553761ca1605337c4529c7bf78eb12e302f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cf4f9fcd4160f38c102a86e583b8aa18d46330c2711f39ea5104182e42160d7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2013-08-26T11:47:40Z",
    "title_canon_sha256": "e28c2490066728f8a56b0b8abc3e63ec88eed9354465171cc1e6137aae4aae5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.5547",
    "kind": "arxiv",
    "version": 1
  }
}