Pith Number

pith:3RQAH2O4

pith:2019:3RQAH2O4AVXANA52OCQKURAUQA

not attested not anchored not stored refs pending

Limit Sets and Internal Transitivity in Free Group Actions

Jonathan Meddaugh, Kyle Binder

arxiv:1908.07382 v1 · 2019-08-20 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3RQAH2O4AVXANA52OCQKURAUQA}

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	2026-07-04T23:58:33.838181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc6003e9dc056e0683ba70a0aa441480167211df99ca433f93b3f55f2e5c5e5f

Aliases

arxiv: 1908.07382 · arxiv_version: 1908.07382v1 · doi: 10.48550/arxiv.1908.07382 · pith_short_12: 3RQAH2O4AVXA · pith_short_16: 3RQAH2O4AVXANA52 · pith_short_8: 3RQAH2O4

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/3RQAH2O4AVXANA52OCQKURAUQA \
  | 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: dc6003e9dc056e0683ba70a0aa441480167211df99ca433f93b3f55f2e5c5e5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "744a252851a5400c9a0b7db4defe70e7f9fe4b1d3bb535e30f1d41d99c40bd86",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2019-08-20T14:16:56Z",
    "title_canon_sha256": "69d2230915b49d74d557c5685544db87248600ab74f76634309fe78a97717154"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.07382",
    "kind": "arxiv",
    "version": 1
  }
}