Pith Number

pith:PZYDMCK4

pith:2018:PZYDMCK4TAKSPDYBRSR2NAGP7X

not attested not anchored not stored refs pending

On the structure of abelian profinite groups

Mar\'ia V. Ferrer, Salvador Hern\'andez

arxiv:1811.08171 v1 · 2018-11-20 · math.GR · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PZYDMCK4TAKSPDYBRSR2NAGP7X}

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	2026-05-18T00:00:13.978543Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e7036095c9815278f018ca3a680cffdd0fe91ac7e5f3852ba83d81af1508b14

Aliases

arxiv: 1811.08171 · arxiv_version: 1811.08171v1 · doi: 10.48550/arxiv.1811.08171 · pith_short_12: PZYDMCK4TAKS · pith_short_16: PZYDMCK4TAKSPDYB · pith_short_8: PZYDMCK4

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/PZYDMCK4TAKSPDYBRSR2NAGP7X \
  | 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: 7e7036095c9815278f018ca3a680cffdd0fe91ac7e5f3852ba83d81af1508b14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2077d26e37b446c447b04cad372ae23507c7cd6b5addc159c9dbf2c27e78241b",
    "cross_cats_sorted": [
      "math.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2018-11-20T10:45:25Z",
    "title_canon_sha256": "fea689e037f302e54a774513ded0ddd8f674bcf18fc94acf02977ce815cc215a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.08171",
    "kind": "arxiv",
    "version": 1
  }
}