Pith Number

pith:BDYPJPBL

pith:2017:BDYPJPBLVXA3HDJ44H7IEGP2PL

not attested not anchored not stored refs pending

A fixed-point theorem for definably amenable groups

Alf Onshuus, Juan Felipe Carmona, Kevin D\'avila, Rafael Zamora

arxiv:1711.04042 v1 · 2017-11-10 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BDYPJPBLVXA3HDJ44H7IEGP2PL}

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	2026-05-18T00:30:50.244656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08f0f4bc2badc1b38d3ce1fe8219fa7af910d115010bc091087fa2494d336952

Aliases

arxiv: 1711.04042 · arxiv_version: 1711.04042v1 · doi: 10.48550/arxiv.1711.04042 · pith_short_12: BDYPJPBLVXA3 · pith_short_16: BDYPJPBLVXA3HDJ4 · pith_short_8: BDYPJPBL

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/BDYPJPBLVXA3HDJ44H7IEGP2PL \
  | 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: 08f0f4bc2badc1b38d3ce1fe8219fa7af910d115010bc091087fa2494d336952

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2169477ba33314cd3fa2bda91b0cac89128bd1b547221f4a936fed80c0aa8c7c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2017-11-10T23:30:46Z",
    "title_canon_sha256": "1ecd04688f7ba115e0c293b52c5bc6dd68eb9865ac53ffe46376011f3c9ef5c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.04042",
    "kind": "arxiv",
    "version": 1
  }
}