Pith Number

pith:NKJD3DVG

pith:2008:NKJD3DVGPU6K5HRYNZLQXXZXVA

not attested not anchored not stored refs pending

Group Actions and Covering Maps in the Uniform Category

A. Mitra, B. Labuz, J. Dydak, N. Brodskiy

arxiv:0802.4304 v1 · 2008-02-28 · math.GN · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NKJD3DVGPU6K5HRYNZLQXXZXVA}

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	2026-05-18T04:40:09.597148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a923d8ea67d3cae9e386e570bdf37a8073b0ec53b7d9d11c32486ff94f110ae

Aliases

arxiv: 0802.4304 · arxiv_version: 0802.4304v1 · doi: 10.48550/arxiv.0802.4304 · pith_short_12: NKJD3DVGPU6K · pith_short_16: NKJD3DVGPU6K5HRY · pith_short_8: NKJD3DVG

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/NKJD3DVGPU6K5HRYNZLQXXZXVA \
  | 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: 6a923d8ea67d3cae9e386e570bdf37a8073b0ec53b7d9d11c32486ff94f110ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "933c73e2ba917d8df89e0fa900b7c36e70c0ffac663aeb11960e876be8d9dbbf",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2008-02-28T22:31:21Z",
    "title_canon_sha256": "958b2313dd6744b8c0a42910e32b61cb984e206bc4db10061ac30f3833956ba4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.4304",
    "kind": "arxiv",
    "version": 1
  }
}