Pith Number

pith:UPYRDLHV

pith:2013:UPYRDLHVK2VJM6YFX3BS6ZUROB

not attested not anchored not stored refs pending

Algebraic Representations of Ergodic Actions and Super-Rigidity

Alex Furman, Uri Bader

arxiv:1311.3696 v2 · 2013-11-14 · 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{UPYRDLHVK2VJM6YFX3BS6ZUROB}

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.

Cited by

1 paper in Pith

The Normal Subgroup Theorem for lattices on two-dimensional Euclidean buildings

Receipt and verification

First computed	2026-05-18T02:56:12.512955Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3f111acf556aa967b05bec32f6691706ff9c9009731a2ba04a2c5fab50029e5

Aliases

arxiv: 1311.3696 · arxiv_version: 1311.3696v2 · doi: 10.48550/arxiv.1311.3696 · pith_short_12: UPYRDLHVK2VJ · pith_short_16: UPYRDLHVK2VJM6YF · pith_short_8: UPYRDLHV

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/UPYRDLHVK2VJM6YFX3BS6ZUROB \
  | 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: a3f111acf556aa967b05bec32f6691706ff9c9009731a2ba04a2c5fab50029e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f97d3b8c77fee0d631bf481ea52b6516e6539bcf9b05137da06d09a5432c67f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2013-11-14T23:06:35Z",
    "title_canon_sha256": "1a2e1ec20c6efe36854563e6958523033e51f091bc955c8e613a2d0f06f5919c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.3696",
    "kind": "arxiv",
    "version": 2
  }
}