Pith Number

pith:BWBFNG5U

pith:2016:BWBFNG5UB7MPGYHKSUXA6IRRGW

not attested not anchored not stored refs pending

Symmetric multiplicative formality of the Kontsevich operad

Paul Arnaud Songhafouo Tsopm\'en\'e

arxiv:1604.08006 v2 · 2016-04-27 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BWBFNG5UB7MPGYHKSUXA6IRRGW}

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	2026-05-18T00:43:31.436365Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d82569bb40fd8f360ea952e0f2231358b8a9d1e3e0ee2d9039ccb12616de986

Aliases

arxiv: 1604.08006 · arxiv_version: 1604.08006v2 · doi: 10.48550/arxiv.1604.08006 · pith_short_12: BWBFNG5UB7MP · pith_short_16: BWBFNG5UB7MPGYHK · pith_short_8: BWBFNG5U

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/BWBFNG5UB7MPGYHKSUXA6IRRGW \
  | 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: 0d82569bb40fd8f360ea952e0f2231358b8a9d1e3e0ee2d9039ccb12616de986

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a3fcc1d82ba11b026db12646563633eca54c95b0337e88ced4053694d56ea1d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2016-04-27T10:11:45Z",
    "title_canon_sha256": "78b79aea9ebd941da1baa01dc62ec7213a6e6caa4b1f96b118d634975b766a8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.08006",
    "kind": "arxiv",
    "version": 2
  }
}