Pith Number

pith:4MY6NAJC

pith:2018:4MY6NAJC4RN6KR7NA4NMIRB7Y2

not attested not anchored not stored refs pending

Gerstenhaber algebra and Deligne's conjecture on Tate-Hochschild cohomology

Zhengfang Wang

arxiv:1801.07990 v1 · 2018-01-24 · math.RT · math.AT · math.KT · 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{4MY6NAJC4RN6KR7NA4NMIRB7Y2}

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	2026-05-18T00:25:10.394795Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e331e68122e45be547ed071ac4443fc6b6acc405ac9f7a4f22f1dd3a9dccebe8

Aliases

arxiv: 1801.07990 · arxiv_version: 1801.07990v1 · doi: 10.48550/arxiv.1801.07990 · pith_short_12: 4MY6NAJC4RN6 · pith_short_16: 4MY6NAJC4RN6KR7N · pith_short_8: 4MY6NAJC

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/4MY6NAJC4RN6KR7NA4NMIRB7Y2 \
  | 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: e331e68122e45be547ed071ac4443fc6b6acc405ac9f7a4f22f1dd3a9dccebe8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c995bc8bbbf0f055f7bea35d1d61694b8dd12e8235d07ed7dc79d980d1c4260",
    "cross_cats_sorted": [
      "math.AT",
      "math.KT",
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2018-01-24T14:06:22Z",
    "title_canon_sha256": "fc13ecb5380f26740f73bdcb474d78f3e38a22f0868df03b076fe1ec78260280"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07990",
    "kind": "arxiv",
    "version": 1
  }
}