Pith Number

pith:ZHX2X4IL

pith:2018:ZHX2X4ILIMUVPWPBHAMHF3EWCU

not attested not anchored not stored refs pending

The ER(2)-cohomology of X^nCP^\infty and BU(n)

Nitu Kitchloo, Vitaly Lorman, W. Stephen Wilson

arxiv:1807.05470 v1 · 2018-07-15 · 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{ZHX2X4ILIMUVPWPBHAMHF3EWCU}

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	2026-05-18T00:10:43.462334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9efabf10b432957d9e1381872ec96150f289fc1fb052802535080bcec54e820

Aliases

arxiv: 1807.05470 · arxiv_version: 1807.05470v1 · doi: 10.48550/arxiv.1807.05470 · pith_short_12: ZHX2X4ILIMUV · pith_short_16: ZHX2X4ILIMUVPWPB · pith_short_8: ZHX2X4IL

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/ZHX2X4ILIMUVPWPBHAMHF3EWCU \
  | 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: c9efabf10b432957d9e1381872ec96150f289fc1fb052802535080bcec54e820

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43bac8698c024c1a46fc7405488d8bd4e6d0dac2d40a3ba92e6aedea3e9bc84a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2018-07-15T00:31:10Z",
    "title_canon_sha256": "46ee2ba3fbd103e83cdd82f70411a5be174590a5314aeaffc156e5227ad72bff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.05470",
    "kind": "arxiv",
    "version": 1
  }
}