Pith Number

pith:UPFXNFWU

pith:2018:UPFXNFWUXQZKNZ7AMSJFFA2UUX

not attested not anchored not stored refs pending

Hom-associative algebras up to homotopy

Apurba Das

arxiv:1809.07024 v1 · 2018-09-19 · 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{UPFXNFWUXQZKNZ7AMSJFFA2UUX}

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	2026-05-18T00:05:20.857819Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3cb7696d4bc32a6e7e06492528354a5c446962ac898129c47c2260c6b562036

Aliases

arxiv: 1809.07024 · arxiv_version: 1809.07024v1 · doi: 10.48550/arxiv.1809.07024 · pith_short_12: UPFXNFWUXQZK · pith_short_16: UPFXNFWUXQZKNZ7A · pith_short_8: UPFXNFWU

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/UPFXNFWUXQZKNZ7AMSJFFA2UUX \
  | 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: a3cb7696d4bc32a6e7e06492528354a5c446962ac898129c47c2260c6b562036

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd5aad10bd973c37bb7d28de30eb4b0fbaabcbf3a8ae2f9b14cb131b7fddf35b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2018-09-19T06:24:49Z",
    "title_canon_sha256": "05b69b7c25345b079c7431ff813b1c148e383782f9238bdc1d189e26797d6eb1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.07024",
    "kind": "arxiv",
    "version": 1
  }
}