Pith Number

pith:XQI35Z3U

pith:2017:XQI35Z3UJNTDS5XNLSHWP2OFD2

not attested not anchored not stored refs pending

Topological Hochschild homology of X(n)

Jonathan Beardsley

arxiv:1708.09486 v1 · 2017-08-30 · 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{XQI35Z3UJNTDS5XNLSHWP2OFD2}

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	2026-05-18T00:36:18.650883Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc11bee7744b663976ed5c8f67e9c51ea92ac078d58adfd9d806cc72ba8692f2

Aliases

arxiv: 1708.09486 · arxiv_version: 1708.09486v1 · doi: 10.48550/arxiv.1708.09486 · pith_short_12: XQI35Z3UJNTD · pith_short_16: XQI35Z3UJNTDS5XN · pith_short_8: XQI35Z3U

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/XQI35Z3UJNTDS5XNLSHWP2OFD2 \
  | 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: bc11bee7744b663976ed5c8f67e9c51ea92ac078d58adfd9d806cc72ba8692f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c39b974ce24edb0b20033cf3f593311f408692bd8a7382c8ac3fc550c1e63912",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-08-30T22:00:57Z",
    "title_canon_sha256": "e968f34d5bc7437396c3645c8c2aa347af938bdcbf8fc81a508df401694d3627"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.09486",
    "kind": "arxiv",
    "version": 1
  }
}