Pith Number

pith:TSNDRVEJ

pith:2013:TSNDRVEJIEU3OMXW46F5MROMJA

not attested not anchored not stored refs pending

Equivariant K-Theory of Central Extensions and Twisted Equivariant K-theory: Sl3(Z) and St3(Z)

Mario Velasquez, Noe Barcenas

arxiv:1311.5415 v2 · 2013-11-21 · 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{TSNDRVEJIEU3OMXW46F5MROMJA}

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	2026-05-18T02:45:04.550839Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c9a38d4894129b732f6e78bd645cc480af46270f6813c2558691fa7e5888d37

Aliases

arxiv: 1311.5415 · arxiv_version: 1311.5415v2 · doi: 10.48550/arxiv.1311.5415 · pith_short_12: TSNDRVEJIEU3 · pith_short_16: TSNDRVEJIEU3OMXW · pith_short_8: TSNDRVEJ

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/TSNDRVEJIEU3OMXW46F5MROMJA \
  | 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: 9c9a38d4894129b732f6e78bd645cc480af46270f6813c2558691fa7e5888d37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e72c55906b60783e3f72daf038235e757e590210015cc422ed9c4ce9dcaa8176",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2013-11-21T14:27:31Z",
    "title_canon_sha256": "6bbe376b7f1e82d562e6c193226885cef7352735c93c923944a2d3cbafac2e51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5415",
    "kind": "arxiv",
    "version": 2
  }
}