Pith Number

pith:S7YGMEYQ

pith:2011:S7YGMEYQ6RO3X4RUYGIKW2O2HK

not attested not anchored not stored refs pending

Obtaining One-loop Gravity Amplitudes Using Spurious Singularities

David C. Dunbar, James H. Ettle, Warren B. Perkins

arxiv:1109.4827 v2 · 2011-09-22 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S7YGMEYQ6RO3X4RUYGIKW2O2HK}

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	2026-05-18T03:23:13.536811Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97f0661310f45dbbf234c190ab69da3aab4b59bd2d42d31b71b0c200418d420c

Aliases

arxiv: 1109.4827 · arxiv_version: 1109.4827v2 · doi: 10.48550/arxiv.1109.4827 · pith_short_12: S7YGMEYQ6RO3 · pith_short_16: S7YGMEYQ6RO3X4RU · pith_short_8: S7YGMEYQ

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/S7YGMEYQ6RO3X4RUYGIKW2O2HK \
  | 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: 97f0661310f45dbbf234c190ab69da3aab4b59bd2d42d31b71b0c200418d420c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91428b5419858d5e9fc56ffa5869ce1c726826858486b3113df14a573c0c4d60",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2011-09-22T14:30:12Z",
    "title_canon_sha256": "e92c94aa867c0e630f3d9d4acb84c5d9fdc3590c3d868ee8a4e831652cae3e5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4827",
    "kind": "arxiv",
    "version": 2
  }
}