Pith Number

pith:Y5L3YLQZ

pith:2019:Y5L3YLQZJ2YN4RI5CTMU6FZY2J

not attested not anchored not stored refs pending

On idempotents of a class of commutative rings

C\'esar A. Hern\'andez Melo, Fernanda D. de Melo Hern\'andez, Horacio Tapia-Recillas

arxiv:1904.12932 v2 · 2019-04-29 · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y5L3YLQZJ2YN4RI5CTMU6FZY2J}

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	2026-05-17T23:41:42.237810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c757bc2e194eb0de451d14d94f1738d2458a4a9aaf0f19758ee7df640773bb02

Aliases

arxiv: 1904.12932 · arxiv_version: 1904.12932v2 · doi: 10.48550/arxiv.1904.12932 · pith_short_12: Y5L3YLQZJ2YN · pith_short_16: Y5L3YLQZJ2YN4RI5 · pith_short_8: Y5L3YLQZ

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/Y5L3YLQZJ2YN4RI5CTMU6FZY2J \
  | 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: c757bc2e194eb0de451d14d94f1738d2458a4a9aaf0f19758ee7df640773bb02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ae6cd9de05ada18365bb41fd702a3a4c880c5d25e5ed13a9b746b5dc3b27d82",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2019-04-29T20:09:20Z",
    "title_canon_sha256": "ab2c8cac22dbe4defa2f43f4c95da67464a10b5b1471307c94b3ece3eb9c1262"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.12932",
    "kind": "arxiv",
    "version": 2
  }
}