Pith Number

pith:HI2JFL3Y

pith:2017:HI2JFL3YER4LIQERNZKUA3TJVH

not attested not anchored not stored refs pending

Local finiteness for Green's relations in semigroup varieties

Filipa Soares, Mikhail V. Volkov, Pedro V. Silva

arxiv:1711.07636 v1 · 2017-11-21 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HI2JFL3YER4LIQERNZKUA3TJVH}

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	2026-05-18T00:29:56.809573Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a3492af782478b440916e55406e69a9e5019050c76babcda5f9c9fdc3690777

Aliases

arxiv: 1711.07636 · arxiv_version: 1711.07636v1 · doi: 10.48550/arxiv.1711.07636 · pith_short_12: HI2JFL3YER4L · pith_short_16: HI2JFL3YER4LIQER · pith_short_8: HI2JFL3Y

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/HI2JFL3YER4LIQERNZKUA3TJVH \
  | 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: 3a3492af782478b440916e55406e69a9e5019050c76babcda5f9c9fdc3690777

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e63f4eb6d4ad6a4ec07f2e60510edc9283866fb3c55e8943b7d641c0e0d65a15",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2017-11-21T05:29:33Z",
    "title_canon_sha256": "c469fcd42a9d39c66164951e8de4b56c19a86da846b1540dd4d69dbbf9d2508f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.07636",
    "kind": "arxiv",
    "version": 1
  }
}