Pith Number

pith:EUJZ2PEQ

pith:2017:EUJZ2PEQ5CI5EUJFYWQZVFFZQV

not attested not anchored not stored refs pending

Profinite semigroups

Dominique Perrin, Revekka Kyriakoglou

arxiv:1703.10088 v1 · 2017-03-29 · math.GR · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EUJZ2PEQ5CI5EUJFYWQZVFFZQV}

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	2026-05-18T00:47:38.682136Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25139d3c90e891d25125c5a19a94b9857391f7b8ca747424c2304e83a0981632

Aliases

arxiv: 1703.10088 · arxiv_version: 1703.10088v1 · doi: 10.48550/arxiv.1703.10088 · pith_short_12: EUJZ2PEQ5CI5 · pith_short_16: EUJZ2PEQ5CI5EUJF · pith_short_8: EUJZ2PEQ

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/EUJZ2PEQ5CI5EUJFYWQZVFFZQV \
  | 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: 25139d3c90e891d25125c5a19a94b9857391f7b8ca747424c2304e83a0981632

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2aceafae85376020e22b6196cf167366c6c2aebc0b7a38197af555b91f16a910",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2017-03-29T15:10:46Z",
    "title_canon_sha256": "53683c327ee98bd04fe5c43df7cc3f1a36451cb362e8ef9bc3444f7a4983cf28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.10088",
    "kind": "arxiv",
    "version": 1
  }
}