Pith Number

pith:L7JNGX6X

pith:1997:L7JNGX6XHXW6KM3QUCHUWB5TY6

not attested not anchored not stored refs pending

The cohomology of the Lyons group and double covers of alternating groups

Alejandro Adem, Dikran Karagueuzian, K. Umland, R. James Milgram

arxiv:math/9705229 v1 · 1997-05-21 · math.AT · 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{L7JNGX6XHXW6KM3QUCHUWB5TY6}

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	2026-05-18T01:05:35.276330Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fd2d35fd73dede53370a08f4b07b3c7ae55bee288292d65287fadedd75ed0b7

Aliases

arxiv: math/9705229 · arxiv_version: math/9705229v1 · doi: 10.48550/arxiv.math/9705229 · pith_short_12: L7JNGX6XHXW6 · pith_short_16: L7JNGX6XHXW6KM3Q · pith_short_8: L7JNGX6X

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/L7JNGX6XHXW6KM3QUCHUWB5TY6 \
  | 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: 5fd2d35fd73dede53370a08f4b07b3c7ae55bee288292d65287fadedd75ed0b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f1a0e2861c32193512c3cd5b545be5361c2b77269fdb6565399d48ad55823de",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "",
    "primary_cat": "math.AT",
    "submitted_at": "1997-05-21T00:00:00Z",
    "title_canon_sha256": "16c877c350f85a9d8341c4a825c222be04db0e7e88b02fb825f5ac6604a7db62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9705229",
    "kind": "arxiv",
    "version": 1
  }
}