Pith Number

pith:QA472HTQ

pith:2018:QA472HTQDVVDYJPK5XN3AAGVZD

not attested not anchored not stored refs pending

Operadic semi-infinite homology

Shintarou Yanagida

arxiv:1803.11144 v1 · 2018-03-29 · 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{QA472HTQDVVDYJPK5XN3AAGVZD}

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	2026-05-18T00:19:48.394992Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8039fd1e701d6a3c25eaeddbb000d5c8fef03a99f8860f217132d068d7d6f3d2

Aliases

arxiv: 1803.11144 · arxiv_version: 1803.11144v1 · doi: 10.48550/arxiv.1803.11144 · pith_short_12: QA472HTQDVVD · pith_short_16: QA472HTQDVVDYJPK · pith_short_8: QA472HTQ

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/QA472HTQDVVDYJPK5XN3AAGVZD \
  | 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: 8039fd1e701d6a3c25eaeddbb000d5c8fef03a99f8860f217132d068d7d6f3d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "945ad8f0c41fdf9ba49bc459f8b553205c5b40f90c61e421972575ddfcaf67ac",
    "cross_cats_sorted": [
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.QA",
    "submitted_at": "2018-03-29T16:39:13Z",
    "title_canon_sha256": "fc1119151fed9d1018ed20636366a68e11c44cbd7e424e050231a93b1374582a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.11144",
    "kind": "arxiv",
    "version": 1
  }
}