Pith Number

pith:J3JNAHXJ

pith:2026:J3JNAHXJMQSPACBBE5FO7WYYLE

not attested not anchored not stored refs pending

Actions with a strong fundamental domain and Sigma invariants of groups

Conchita Mart\'inez Perez, Marcos Escart\'in Ferrer, Peio Ardaiz Gal\'e

arxiv:2606.26033 v1 · 2026-06-24 · 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{J3JNAHXJMQSPACBBE5FO7WYYLE}

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	2026-06-25T01:18:46.383351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ed2d01ee96424f00821274aefdb185933af533e0d8627c72da98534ea4cc94f

Aliases

arxiv: 2606.26033 · arxiv_version: 2606.26033v1 · doi: 10.48550/arxiv.2606.26033 · pith_short_12: J3JNAHXJMQSP · pith_short_16: J3JNAHXJMQSPACBB · pith_short_8: J3JNAHXJ

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/J3JNAHXJMQSPACBBE5FO7WYYLE \
  | 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: 4ed2d01ee96424f00821274aefdb185933af533e0d8627c72da98534ea4cc94f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7efc7906f5a8511f7dd1ac24bad47da8e119572f572ae824abd2a0ec721bef75",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2026-06-24T17:06:24Z",
    "title_canon_sha256": "c95c145b7a31068792239bb7d1cc2d82c726ee801e5780b599f5d2ce40f02a4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.26033",
    "kind": "arxiv",
    "version": 1
  }
}