Pith Number

pith:JM5QKTNK

pith:2018:JM5QKTNKKJDL3E5LQMSKDAS7GU

not attested not anchored not stored refs pending

The fundamental group of an algebra with strongly simply connected Galois covering

Claudia Chaio, Diane Castonguay, Sonia Trepode

arxiv:1803.00901 v1 · 2018-03-02 · 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{JM5QKTNKKJDL3E5LQMSKDAS7GU}

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	2026-05-18T00:22:07.522896Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b3b054daa5246bd93ab8324a1825f353f300b1d05ad557659a3b00f484d8900

Aliases

arxiv: 1803.00901 · arxiv_version: 1803.00901v1 · doi: 10.48550/arxiv.1803.00901 · pith_short_12: JM5QKTNKKJDL · pith_short_16: JM5QKTNKKJDL3E5L · pith_short_8: JM5QKTNK

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/JM5QKTNKKJDL3E5LQMSKDAS7GU \
  | 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: 4b3b054daa5246bd93ab8324a1825f353f300b1d05ad557659a3b00f484d8900

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a8c64629328936acc3d845368c1aa25573934e6916528f5ec680525e0a44b39",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2018-03-02T15:39:56Z",
    "title_canon_sha256": "4a708a4a51b2a4f9af2db5054245698a11b6dde9f77e608689b953bd5629e3da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.00901",
    "kind": "arxiv",
    "version": 1
  }
}