Pith Number

pith:WONE4LHL

pith:2009:WONE4LHLCAIKMEDZNKQYVCZDY4

not attested not anchored not stored refs pending

Perturbations of C*-algebraic invariants

Allan Sinclair, Erik Christensen, Roger R. Smith, Stuart White

arxiv:0910.1368 v1 · 2009-10-07 · 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{WONE4LHLCAIKMEDZNKQYVCZDY4}

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	2026-05-18T04:42:14.662060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b39a4e2ceb1010a610796aa18a8b23c722066f4a577a66d5f4a524151b855b27

Aliases

arxiv: 0910.1368 · arxiv_version: 0910.1368v1 · doi: 10.48550/arxiv.0910.1368 · pith_short_12: WONE4LHLCAIK · pith_short_16: WONE4LHLCAIKMEDZ · pith_short_8: WONE4LHL

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/WONE4LHLCAIKMEDZNKQYVCZDY4 \
  | 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: b39a4e2ceb1010a610796aa18a8b23c722066f4a577a66d5f4a524151b855b27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5cff630cf23e1c7e5dc196633e8a243c0346ed7e61d8045df0b00fbf63ba6de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2009-10-07T21:42:17Z",
    "title_canon_sha256": "5930a2be5ad0da0ecb6a8f605244e6a3b39b12a63df8e5e58efae56b425ef7bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.1368",
    "kind": "arxiv",
    "version": 1
  }
}