Pith Number

pith:2QFPXHVE

pith:2008:2QFPXHVEXILISJ6KUU4TMV6TKB

not attested not anchored not stored refs pending

C*-Algebras over Topological Spaces: Filtrated K-Theory

Ralf Meyer, Ryszard Nest

arxiv:0810.0096 v3 · 2008-10-01 · math.OA · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2QFPXHVEXILISJ6KUU4TMV6TKB}

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	2026-05-18T01:29:32.382648Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d40afb9ea4ba168927caa5393657d350461a96172f59525184612825dfe4b92a

Aliases

arxiv: 0810.0096 · arxiv_version: 0810.0096v3 · doi: 10.48550/arxiv.0810.0096 · pith_short_12: 2QFPXHVEXILI · pith_short_16: 2QFPXHVEXILISJ6K · pith_short_8: 2QFPXHVE

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/2QFPXHVEXILISJ6KUU4TMV6TKB \
  | 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: d40afb9ea4ba168927caa5393657d350461a96172f59525184612825dfe4b92a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77d31d49a4c082362c2db75aa6183dc497451d325b17aff5904937f6c9c29ab8",
    "cross_cats_sorted": [
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2008-10-01T07:47:57Z",
    "title_canon_sha256": "60b9a6ea31dd80784798770255ebdb44c4f2bb40c8530f18dbc888b2e58855b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.0096",
    "kind": "arxiv",
    "version": 3
  }
}