Pith Number

pith:I7KMZ6LC

pith:2017:I7KMZ6LCFIL2R46FOTJ4357672

not attested not anchored not stored refs pending

Idempotent completion of n-angulated categories

Zengqiang Lin

arxiv:1701.04223 v1 · 2017-01-16 · math.CT · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I7KMZ6LCFIL2R46FOTJ4357672}

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	2026-05-18T00:52:47.406559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47d4ccf9622a17a8f3c574d3cdf7fefe86e4c03712edb7f4e470a8142873b8d8

Aliases

arxiv: 1701.04223 · arxiv_version: 1701.04223v1 · doi: 10.48550/arxiv.1701.04223 · pith_short_12: I7KMZ6LCFIL2 · pith_short_16: I7KMZ6LCFIL2R46F · pith_short_8: I7KMZ6LC

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/I7KMZ6LCFIL2R46FOTJ4357672 \
  | 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: 47d4ccf9622a17a8f3c574d3cdf7fefe86e4c03712edb7f4e470a8142873b8d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84f183984cb7bc2105d96bed127c824b08936daec32f4ef3897f2302fe9f5d42",
    "cross_cats_sorted": [
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2017-01-16T10:07:49Z",
    "title_canon_sha256": "bbc226c45fe43f3a0865c592dbabf76f59834a80b63f87ceaa7d9cc1fd8d422c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.04223",
    "kind": "arxiv",
    "version": 1
  }
}