Pith Number

pith:C7WFFYHN

pith:2012:C7WFFYHNXTRAUKQ2TOKYOWDEC4

not attested not anchored not stored refs pending

A new construction of cyclic homology

Travis Schedler, Victor Ginzburg

arxiv:1201.6635 v1 · 2012-01-31 · math.KT · math.AG · math.QA · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C7WFFYHNXTRAUKQ2TOKYOWDEC4}

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	2026-05-18T00:44:30.471101Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17ec52e0edbce20a2a1a9b9587586417316effe03ea7ee7f6d77b432efcc103b

Aliases

arxiv: 1201.6635 · arxiv_version: 1201.6635v1 · doi: 10.48550/arxiv.1201.6635 · pith_short_12: C7WFFYHNXTRA · pith_short_16: C7WFFYHNXTRAUKQ2 · pith_short_8: C7WFFYHN

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/C7WFFYHNXTRAUKQ2TOKYOWDEC4 \
  | 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: 17ec52e0edbce20a2a1a9b9587586417316effe03ea7ee7f6d77b432efcc103b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ba1f17e46b61bbdfd9cb5a55ef1d32a80b593b24f01896a102c76164bdd47d3",
    "cross_cats_sorted": [
      "math.AG",
      "math.QA",
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2012-01-31T17:56:33Z",
    "title_canon_sha256": "cb1baa2861ddf723a7b76d5f45565d01fca6a5df6dce6ae21a4a87606b58fba9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.6635",
    "kind": "arxiv",
    "version": 1
  }
}