Pith Number

pith:4TIM5YGM

pith:2019:4TIM5YGM3DOQNXQZ2OWBH2QYRQ

not attested not anchored not stored refs pending

Directly decomposable ideals and congruence kernels of commutative semirings

G\"unther Eigenthaler, Helmut L\"anger, Ivan Chajda

arxiv:1901.05991 v1 · 2019-01-17 · 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{4TIM5YGM3DOQNXQZ2OWBH2QYRQ}

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	2026-05-17T23:56:04.861033Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4d0cee0ccd8dd06de19d3ac13ea188c36006c4633eff49caa52cc8fa75df4e8

Aliases

arxiv: 1901.05991 · arxiv_version: 1901.05991v1 · doi: 10.48550/arxiv.1901.05991 · pith_short_12: 4TIM5YGM3DOQ · pith_short_16: 4TIM5YGM3DOQNXQZ · pith_short_8: 4TIM5YGM

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/4TIM5YGM3DOQNXQZ2OWBH2QYRQ \
  | 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: e4d0cee0ccd8dd06de19d3ac13ea188c36006c4633eff49caa52cc8fa75df4e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6044f7cd4e41b2ead773676d691961e823cc29f4729e1fe3297a40e41440c4fc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2019-01-17T19:47:23Z",
    "title_canon_sha256": "58d4681fed8bab9d8387c80e82c02682691ded7b648df0cd126eed251c080dbe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.05991",
    "kind": "arxiv",
    "version": 1
  }
}