Pith Number

pith:4LB7RWSL

pith:2017:4LB7RWSLJDZZNDWBWC2LDWM73M

not attested not anchored not stored refs pending

Quasi-Automorphism Groups of Type F-infinity

Daniel S. Farley, Delaney R. Aydel, Samuel Audino

arxiv:1705.01628 v1 · 2017-05-03 · 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{4LB7RWSLJDZZNDWBWC2LDWM73M}

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	2026-05-18T00:17:09.349123Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2c3f8da4b48f3968ec1b0b4b1d99fdb0d9f41bb898502c2f7dd0e7d33976063

Aliases

arxiv: 1705.01628 · arxiv_version: 1705.01628v1 · doi: 10.48550/arxiv.1705.01628 · pith_short_12: 4LB7RWSLJDZZ · pith_short_16: 4LB7RWSLJDZZNDWB · pith_short_8: 4LB7RWSL

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/4LB7RWSLJDZZNDWBWC2LDWM73M \
  | 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: e2c3f8da4b48f3968ec1b0b4b1d99fdb0d9f41bb898502c2f7dd0e7d33976063

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba7265352958e99caa679d340028eff737ab5fbdc4f95f64719c56f1a4c67b50",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2017-05-03T21:13:46Z",
    "title_canon_sha256": "e7bdab91993ff0baf7d6d87c0390f1fd5ebe1075eb48f8ddd79a52680eb1e235"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.01628",
    "kind": "arxiv",
    "version": 1
  }
}