Pith Number

pith:QRTUT5K4

pith:2019:QRTUT5K4AUZRXPH3BCOOLKR3YB

not attested not anchored not stored refs pending

Algorithms for the Tits alternative and related problems

A. S. Detinko, D. L. Flannery, E. A. O'Brien

arxiv:1905.05234 v1 · 2019-05-13 · 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{QRTUT5K4AUZRXPH3BCOOLKR3YB}

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	2026-05-17T23:46:17.113186Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

846749f55c05331bbcfb089ce5aa3bc06cd61d6df777fecdca232fb7c90eecb2

Aliases

arxiv: 1905.05234 · arxiv_version: 1905.05234v1 · doi: 10.48550/arxiv.1905.05234 · pith_short_12: QRTUT5K4AUZR · pith_short_16: QRTUT5K4AUZRXPH3 · pith_short_8: QRTUT5K4

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/QRTUT5K4AUZRXPH3BCOOLKR3YB \
  | 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: 846749f55c05331bbcfb089ce5aa3bc06cd61d6df777fecdca232fb7c90eecb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3ef2bdb70b3fa57578ceaae324ffbabd501480b8db97f4d432532e9288e73e9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2019-05-13T18:34:25Z",
    "title_canon_sha256": "eb244e6ea4188ca218597c08cedeb086a5033c19f4b61a406c5f8050814d6ccc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.05234",
    "kind": "arxiv",
    "version": 1
  }
}