Pith Number

pith:4XGO3ZRS

pith:2015:4XGO3ZRSFI6G3QADW4PF4UWHJ7

not attested not anchored not stored refs pending

$A_\infty$ structure from the Berkovits formulation of open superstring field theory

Theodore Erler, Tomoyuki Takezaki, Yuji Okawa

arxiv:1505.01659 v1 · 2015-05-07 · hep-th · math.AT · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4XGO3ZRSFI6G3QADW4PF4UWHJ7}

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	2026-05-18T02:09:53.919955Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5ccede6322a3c6dc003b71e5e52c74feb1b298037f64e5bd4ccd74d27365d90

Aliases

arxiv: 1505.01659 · arxiv_version: 1505.01659v1 · doi: 10.48550/arxiv.1505.01659 · pith_short_12: 4XGO3ZRSFI6G · pith_short_16: 4XGO3ZRSFI6G3QAD · pith_short_8: 4XGO3ZRS

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/4XGO3ZRSFI6G3QADW4PF4UWHJ7 \
  | 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: e5ccede6322a3c6dc003b71e5e52c74feb1b298037f64e5bd4ccd74d27365d90

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a91b94750355864df269d11f422fddc56545c08cd4c34d4ea3dfd835f8eb356",
    "cross_cats_sorted": [
      "math.AT",
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2015-05-07T10:47:26Z",
    "title_canon_sha256": "3db38e43c97e4937317832bfac446b40a93ac621b2439453d1dbc7f4d61d3511"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.01659",
    "kind": "arxiv",
    "version": 1
  }
}