Pith. sign in
Pith Number

pith:LMYMEWME

pith:2019:LMYMEWMEOEOBZ5JHHBDKBNSRPQ
not attested not anchored not stored refs pending

An informal introduction to dg categories

Xiaofa Chen, Xiao-Wu Chen

arxiv:1908.04599 v2 · 2019-08-13 · math.RT · math.CT

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{LMYMEWMEOEOBZ5JHHBDKBNSRPQ}

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.

Cited by

1 paper in Pith

Receipt and verification
First computed 2026-07-05T03:04:00.135993Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

5b30c25984711c1cf5273846a0b6517c3f739361c1223e60c5cfe34910e24671

Aliases

arxiv: 1908.04599 · arxiv_version: 1908.04599v2 · doi: 10.48550/arxiv.1908.04599 · pith_short_12: LMYMEWMEOEOB · pith_short_16: LMYMEWMEOEOBZ5JH · pith_short_8: LMYMEWME
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/LMYMEWMEOEOBZ5JHHBDKBNSRPQ \
  | 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: 5b30c25984711c1cf5273846a0b6517c3f739361c1223e60c5cfe34910e24671
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "1f42e9ff10f98887870d3f2676ebe9d678e5220ef96bf4c7c4e00cf0e82cf863",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2019-08-13T12:13:45Z",
    "title_canon_sha256": "48a30b8bb10b80736b438f4842c8bb90b29e084ee441af5d45c2aaf3214a65af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04599",
    "kind": "arxiv",
    "version": 2
  }
}