Pith Number

pith:5PCCDW64

pith:2017:5PCCDW643N7GIC2BF3AOQAUH7C

not attested not anchored not stored refs pending

Amalgamated Free Product Rigidity for Group von Neumann Algebras

Adrian Ioana, Ionut Chifan

arxiv:1705.07350 v2 · 2017-05-20 · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5PCCDW643N7GIC2BF3AOQAUH7C}

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	2026-05-18T00:41:47.597275Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebc421dbdcdb7e640b412ec0e80287f8bcc773fa2796010c0f76487043a932fb

Aliases

arxiv: 1705.07350 · arxiv_version: 1705.07350v2 · doi: 10.48550/arxiv.1705.07350 · pith_short_12: 5PCCDW643N7G · pith_short_16: 5PCCDW643N7GIC2B · pith_short_8: 5PCCDW64

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/5PCCDW643N7GIC2BF3AOQAUH7C \
  | 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: ebc421dbdcdb7e640b412ec0e80287f8bcc773fa2796010c0f76487043a932fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db411573c69e29eb8ab927a9f295a8fae94ed173121babaf5d6bad42beb1fc1d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2017-05-20T19:54:42Z",
    "title_canon_sha256": "b9e70a152f4fd3c47324f10908549d14183299c35c930c4e24a239effe0930a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.07350",
    "kind": "arxiv",
    "version": 2
  }
}