Pith Number

pith:DAVYVKLU

pith:2018:DAVYVKLU354KTJID2BQTEVLFIJ

not attested not anchored not stored refs pending

Derived Picard groups of homologically smooth Koszul DG algebras

Jiwei He, Xuefeng Mao, Yinuo Yang

arxiv:1805.02005 v4 · 2018-05-05 · 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{DAVYVKLU354KTJID2BQTEVLFIJ}

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	2026-05-17T23:47:36.240995Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

182b8aa974df78a9a503d0613255654272a2069169db1a1ad583cc80d05d0a51

Aliases

arxiv: 1805.02005 · arxiv_version: 1805.02005v4 · doi: 10.48550/arxiv.1805.02005 · pith_short_12: DAVYVKLU354K · pith_short_16: DAVYVKLU354KTJID · pith_short_8: DAVYVKLU

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/DAVYVKLU354KTJID2BQTEVLFIJ \
  | 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: 182b8aa974df78a9a503d0613255654272a2069169db1a1ad583cc80d05d0a51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e3118d70caae457ee44a4c8b464c7c58d098f3ba1efc05c5212ff3d5219cf6a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2018-05-05T05:32:26Z",
    "title_canon_sha256": "50aa7ea25743b9b7d0177f5d2b90f07b96d2a514b87fa7a67cc03a2167d43967"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.02005",
    "kind": "arxiv",
    "version": 4
  }
}