Pith Number

pith:O5G652QR

pith:2018:O5G652QRJHGF47JJOKXUTITFXF

not attested not anchored not stored refs pending

A remark on the ultrapower algebra of the hyperfinite factor

Ionut Chifan, Sayan Das

arxiv:1802.06628 v2 · 2018-02-19 · math.OA · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O5G652QRJHGF47JJOKXUTITFXF}

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	2026-05-18T00:18:09.083947Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

774deeea1149cc5e7d2972af49a265b96ad93603751d4bf1a491fc04ae171d56

Aliases

arxiv: 1802.06628 · arxiv_version: 1802.06628v2 · doi: 10.48550/arxiv.1802.06628 · pith_short_12: O5G652QRJHGF · pith_short_16: O5G652QRJHGF47JJ · pith_short_8: O5G652QR

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/O5G652QRJHGF47JJOKXUTITFXF \
  | 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: 774deeea1149cc5e7d2972af49a265b96ad93603751d4bf1a491fc04ae171d56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d58af512152ac22bae2e31e395edae3b914e7569ea0ce143c5a5df930c35808",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2018-02-19T13:49:49Z",
    "title_canon_sha256": "84cb0d9615bc2a81683ae769ebe780b241de64c2cca10e82299eef62d300a858"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.06628",
    "kind": "arxiv",
    "version": 2
  }
}