Pith Number

pith:PEADPSTA

pith:2016:PEADPSTAZ7HDIQWSHIK7NN3MQ2

not attested not anchored not stored refs pending

Compact Group Actions on Topological and Noncommutative Joins

Alexandru Chirvasitu, Benjamin Passer

arxiv:1604.02173 v4 · 2016-04-07 · math.OA · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PEADPSTAZ7HDIQWSHIK7NN3MQ2}

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	2026-05-17T23:41:37.569355Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

790037ca60cfce3442d23a15f6b76c86bacca318e52f0867d649aa5a38475818

Aliases

arxiv: 1604.02173 · arxiv_version: 1604.02173v4 · doi: 10.48550/arxiv.1604.02173 · pith_short_12: PEADPSTAZ7HD · pith_short_16: PEADPSTAZ7HDIQWS · pith_short_8: PEADPSTA

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/PEADPSTAZ7HDIQWSHIK7NN3MQ2 \
  | 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: 790037ca60cfce3442d23a15f6b76c86bacca318e52f0867d649aa5a38475818

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d74efe7e431eef103a4d0ffc48c8be6e5d92a1499cad9ea18610edd1dc9d29e8",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2016-04-07T20:54:16Z",
    "title_canon_sha256": "08bde51751e190611000e890a72993c1a0b54ae00dc027d4cb2f227af1c231dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.02173",
    "kind": "arxiv",
    "version": 4
  }
}