Pith Number

pith:YPBDQKUO

pith:2012:YPBDQKUOSFBH2FASXVZ5DO5ZLQ

not attested not anchored not stored refs pending

A Modified Similarity Degree for C*-algebras

Don Hadwin, Junhao Shen

arxiv:1211.4855 v1 · 2012-11-20 · 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{YPBDQKUOSFBH2FASXVZ5DO5ZLQ}

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	2026-05-18T03:40:16.677740Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3c2382a8e91427d1412bd73d1bbb95c38726b6e9fb5baba6a45f8b50aec1d84

Aliases

arxiv: 1211.4855 · arxiv_version: 1211.4855v1 · doi: 10.48550/arxiv.1211.4855 · pith_short_12: YPBDQKUOSFBH · pith_short_16: YPBDQKUOSFBH2FAS · pith_short_8: YPBDQKUO

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/YPBDQKUOSFBH2FASXVZ5DO5ZLQ \
  | 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: c3c2382a8e91427d1412bd73d1bbb95c38726b6e9fb5baba6a45f8b50aec1d84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d0f5d503bf2b20e9e7dce99e60c14e159b637c2fffaf6226138da1e4996d8d9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2012-11-20T20:44:55Z",
    "title_canon_sha256": "844d14e5148b8073ca2aa645e1a20af4f4e7b947129fe850df1d8f05484522fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.4855",
    "kind": "arxiv",
    "version": 1
  }
}