Pith Number

pith:MPH72LJG

pith:2017:MPH72LJGD3D4NSNIZ7OVJDZVYV

not attested not anchored not stored refs pending

Generators and relations for the unitary group of a skew hermitian form over a local ring

Fernando Szechtman, James Cruickshank

arxiv:1710.11574 v3 · 2017-10-31 · 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{MPH72LJGD3D4NSNIZ7OVJDZVYV}

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	2026-05-18T00:19:03.194001Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63cffd2d261ec7c6c9a8cfdd548f35c55b65b1eb397b996aebcafb3c75d5d446

Aliases

arxiv: 1710.11574 · arxiv_version: 1710.11574v3 · doi: 10.48550/arxiv.1710.11574 · pith_short_12: MPH72LJGD3D4 · pith_short_16: MPH72LJGD3D4NSNI · pith_short_8: MPH72LJG

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/MPH72LJGD3D4NSNIZ7OVJDZVYV \
  | 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: 63cffd2d261ec7c6c9a8cfdd548f35c55b65b1eb397b996aebcafb3c75d5d446

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c68349917686ead2ef6b843ba173377111cc32c7d16ad5992b6b69eb65f66a3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2017-10-31T16:45:09Z",
    "title_canon_sha256": "be07dbdf66e6f9fc9bc4aea1e1b73ea45ecf61cd43a11359b192020fd0f44cc3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.11574",
    "kind": "arxiv",
    "version": 3
  }
}