Pith Number

pith:WYJKQFBE

pith:2018:WYJKQFBEZJ2KUG4BVNGNM2YPAC

not attested not anchored not stored refs pending

Artin groups of infinite type: trivial centers and acylindical hyperbolicity

Rose Morris-Wright, Ruth Charney

arxiv:1805.04028 v2 · 2018-05-10 · 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{WYJKQFBEZJ2KUG4BVNGNM2YPAC}

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	2026-05-18T00:14:28.197511Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b612a81424ca74aa1b81ab4cd66b0f009405edd895767da86d83dec67886dc72

Aliases

arxiv: 1805.04028 · arxiv_version: 1805.04028v2 · doi: 10.48550/arxiv.1805.04028 · pith_short_12: WYJKQFBEZJ2K · pith_short_16: WYJKQFBEZJ2KUG4B · pith_short_8: WYJKQFBE

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/WYJKQFBEZJ2KUG4BVNGNM2YPAC \
  | 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: b612a81424ca74aa1b81ab4cd66b0f009405edd895767da86d83dec67886dc72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "096c78d7b6a3c613fbb33dc79cfcae87dd4d9b78eb139a93dfe2a547e8ef8d0c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2018-05-10T15:52:31Z",
    "title_canon_sha256": "f03f217a7d4eaa48e7d5a9e1384704d2c3034dbcad3b9709c3dee88cc4162698"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.04028",
    "kind": "arxiv",
    "version": 2
  }
}