Pith Number

pith:RDJVXGLN

pith:2015:RDJVXGLN4IV5BULAQBFGPNVZIV

not attested not anchored not stored refs pending

A Kunneth formula for Bredon cohomology of pullbacks and twisted K-theory of some 6-dimensional orbifolds

German Combariza, Mario Velasquez

arxiv:1512.03023 v2 · 2015-12-09 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RDJVXGLN4IV5BULAQBFGPNVZIV}

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	2026-05-18T01:22:16.386539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88d35b996de22bd0d160804a67b6b945558cc322b4cae6fc67a72d7781e80239

Aliases

arxiv: 1512.03023 · arxiv_version: 1512.03023v2 · doi: 10.48550/arxiv.1512.03023 · pith_short_12: RDJVXGLN4IV5 · pith_short_16: RDJVXGLN4IV5BULA · pith_short_8: RDJVXGLN

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/RDJVXGLN4IV5BULAQBFGPNVZIV \
  | 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: 88d35b996de22bd0d160804a67b6b945558cc322b4cae6fc67a72d7781e80239

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "200c0c4d7d75c3815f00baa5080cf9c4aa24753c14ed4f53a48d95a142c56f28",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2015-12-09T20:00:29Z",
    "title_canon_sha256": "b7463126961d4b53745af4108f1265b7c2cb653a457d63884b64c6e80b44bc10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.03023",
    "kind": "arxiv",
    "version": 2
  }
}