Pith Number

pith:O5GJQQUR

pith:2013:O5GJQQURRWZLSO4PHCTRDVNCDP

not attested not anchored not stored refs pending

Precovering and preenveloping ideals

Furuzan Ozbek

arxiv:1304.7707 v1 · 2013-04-29 · math.RA · 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{O5GJQQURRWZLSO4PHCTRDVNCDP}

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	2026-05-18T03:26:53.292807Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

774c9842918db2b93b8f38a711d5a21bebdcae7d7d5f05370b31f5df97e5f35c

Aliases

arxiv: 1304.7707 · arxiv_version: 1304.7707v1 · doi: 10.48550/arxiv.1304.7707 · pith_short_12: O5GJQQURRWZL · pith_short_16: O5GJQQURRWZLSO4P · pith_short_8: O5GJQQUR

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/O5GJQQURRWZLSO4PHCTRDVNCDP \
  | 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: 774c9842918db2b93b8f38a711d5a21bebdcae7d7d5f05370b31f5df97e5f35c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18b89cd8882990f2daf0ddbd5ddd6abd4c9180b5de11c738343fd7f8064153e1",
    "cross_cats_sorted": [
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2013-04-29T16:39:04Z",
    "title_canon_sha256": "b2ac012658855965aeccadcb25393c52c67e782141ced83e3f56f216a6cb23ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.7707",
    "kind": "arxiv",
    "version": 1
  }
}