Pith Number

pith:T72MYT4W

pith:2017:T72MYT4WC6P33HC722IUQ4ZP2Q

not attested not anchored not stored refs pending

A general construction of $n$-angulated categories using periodic injective resolutions

Zengqiang Lin

arxiv:1702.00876 v1 · 2017-02-03 · math.RT · 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{T72MYT4WC6P33HC722IUQ4ZP2Q}

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	2026-05-18T00:51:29.531614Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ff4cc4f96179fbd9c5fd69148732fd40da3e2b80efa8fd037ae19838c0410fe

Aliases

arxiv: 1702.00876 · arxiv_version: 1702.00876v1 · doi: 10.48550/arxiv.1702.00876 · pith_short_12: T72MYT4WC6P3 · pith_short_16: T72MYT4WC6P33HC7 · pith_short_8: T72MYT4W

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/T72MYT4WC6P33HC722IUQ4ZP2Q \
  | 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: 9ff4cc4f96179fbd9c5fd69148732fd40da3e2b80efa8fd037ae19838c0410fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34bb5b88c3da8e8894e243b57e0d3ac132cf67160c6330cd25e42443a344d57d",
    "cross_cats_sorted": [
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2017-02-03T00:10:02Z",
    "title_canon_sha256": "de574c35e3175b2b7773c843e1970680eb4ffa483d90e964812622ca68a8ae78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.00876",
    "kind": "arxiv",
    "version": 1
  }
}