Pith Number

pith:CALSM37L

pith:2017:CALSM37LSYG532WJGGCU3QFMH6

not attested not anchored not stored refs pending

Cohomology of symplectic groups and Meyer's signature theorem

Andrew Ranicki, Carmen Rovi, Caterina Campagnolo, Dave Benson

arxiv:1710.04851 v2 · 2017-10-13 · 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{CALSM37LSYG532WJGGCU3QFMH6}

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	2026-05-17T23:58:05.376961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1017266feb960dddeac931854dc0ac3fa6a83f92513bb9cae2ad5443614811ef

Aliases

arxiv: 1710.04851 · arxiv_version: 1710.04851v2 · doi: 10.48550/arxiv.1710.04851 · pith_short_12: CALSM37LSYG5 · pith_short_16: CALSM37LSYG532WJ · pith_short_8: CALSM37L

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/CALSM37LSYG532WJGGCU3QFMH6 \
  | 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: 1017266feb960dddeac931854dc0ac3fa6a83f92513bb9cae2ad5443614811ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95fc33c3eda4977d1d9dbb35255f049b50830bb2b0ee94ef960be6bffaa4c9be",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-10-13T09:27:49Z",
    "title_canon_sha256": "626d6c499b082c2a17d161a2f4461a18b76fc9e329a9e0696e460dec37b10bb6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.04851",
    "kind": "arxiv",
    "version": 2
  }
}