Pith Number

pith:XOMDZ4M7

pith:2021:XOMDZ4M7SRMD25FNFTJIM6BW5T

not attested not anchored not stored refs pending

Support varieties over skew complete intersections via derived braided Hochschild cohomology

Josh Pollitz, Luigi Ferraro, W. Frank Moore

arxiv:2101.12287 v1 · 2021-01-28 · math.RA · math.AC · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XOMDZ4M7SRMD25FNFTJIM6BW5T}

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	2026-07-05T02:10:42.545712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb983cf19f94583d74ad2cd2867836ecea9b8db8e0bb1597a2affe645388f288

Aliases

arxiv: 2101.12287 · arxiv_version: 2101.12287v1 · doi: 10.48550/arxiv.2101.12287 · pith_short_12: XOMDZ4M7SRMD · pith_short_16: XOMDZ4M7SRMD25FN · pith_short_8: XOMDZ4M7

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/XOMDZ4M7SRMD25FNFTJIM6BW5T \
  | 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: bb983cf19f94583d74ad2cd2867836ecea9b8db8e0bb1597a2affe645388f288

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51daeeec46a89a063a95126fa14dae26bfeb2b45289000ea87a6e3a3a2e1588f",
    "cross_cats_sorted": [
      "math.AC",
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2021-01-28T21:33:30Z",
    "title_canon_sha256": "6fb3a362c008ef3d7bc647ce1086f63f9b4750066306bd3780c0093b0d0257d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.12287",
    "kind": "arxiv",
    "version": 1
  }
}