Pith Number

pith:F44Q5UNF

pith:2013:F44Q5UNF4HXBGKCXNY35R7VIHP

not attested not anchored not stored refs pending

A-infinity Algebras Derived from Associative Algebras with a Non-Derivation Differential

Kaj B\"orjeson

arxiv:1304.6231 v1 · 2013-04-23 · math.QA · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F44Q5UNF4HXBGKCXNY35R7VIHP}

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	2026-05-18T03:27:22.036165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f390ed1a5e1ee1328576e37d8fea83bc6527b693c63dace69c35bc1dfbf9c66

Aliases

arxiv: 1304.6231 · arxiv_version: 1304.6231v1 · doi: 10.48550/arxiv.1304.6231 · pith_short_12: F44Q5UNF4HXB · pith_short_16: F44Q5UNF4HXBGKCX · pith_short_8: F44Q5UNF

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/F44Q5UNF4HXBGKCXNY35R7VIHP \
  | 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: 2f390ed1a5e1ee1328576e37d8fea83bc6527b693c63dace69c35bc1dfbf9c66

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9be1a51214d9cf92644113b666dc19b9d5de39d8e9a47e90dce9d5b9d095d629",
    "cross_cats_sorted": [
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.QA",
    "submitted_at": "2013-04-23T10:59:18Z",
    "title_canon_sha256": "6f0282871027696baaf1811f154847776c611bae94eb057e5bb56de8e7945e51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.6231",
    "kind": "arxiv",
    "version": 1
  }
}