Pith Number

pith:DCIVPEZD

pith:2019:DCIVPEZDWBDADL6KUJZQ6EODVX

not attested not anchored not stored refs pending

An Introduction to Higher Categorical Algebra

David Gepner

arxiv:1907.02904 v1 · 2019-07-05 · math.AT · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DCIVPEZDWBDADL6KUJZQ6EODVX}

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	2026-05-17T23:41:22.656556Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1891579323b04601afcaa2730f11c3adf995a3d3557b033bfe851038f8c25797

Aliases

arxiv: 1907.02904 · arxiv_version: 1907.02904v1 · doi: 10.48550/arxiv.1907.02904 · pith_short_12: DCIVPEZDWBDA · pith_short_16: DCIVPEZDWBDADL6K · pith_short_8: DCIVPEZD

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/DCIVPEZDWBDADL6KUJZQ6EODVX \
  | 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: 1891579323b04601afcaa2730f11c3adf995a3d3557b033bfe851038f8c25797

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80809bd70b4ac83506587ff01525fcba585703f8a3fab59b69e02ee70ef69e5d",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2019-07-05T15:55:43Z",
    "title_canon_sha256": "430b752bc64dc12604e6bfb594b7b68547122ba51002d16a1e0da222b5ab9f69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.02904",
    "kind": "arxiv",
    "version": 1
  }
}