Pith Number

pith:DEI6UWEY

pith:1998:DEI6UWEYFWAPZOBCPA3WIP3YZA

not attested not anchored not stored refs pending

One-Loop n-Point Helicity Amplitudes in (Self-Dual) Gravity

J.S. Rozowsky, L. Dixon, M. Perelstein, Z. Bern

arxiv:hep-th/9809160 v2 · 1998-09-21 · 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{DEI6UWEYFWAPZOBCPA3WIP3YZA}

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	2026-05-18T04:35:57.949825Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1911ea58982d80fcb8227837643f78c83f179eb530d50708fcd8e08f8e0c0f1c

Aliases

arxiv: hep-th/9809160 · arxiv_version: hep-th/9809160v2 · doi: 10.48550/arxiv.hep-th/9809160 · pith_short_12: DEI6UWEYFWAP · pith_short_16: DEI6UWEYFWAPZOBC · pith_short_8: DEI6UWEY

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/DEI6UWEYFWAPZOBCPA3WIP3YZA \
  | 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: 1911ea58982d80fcb8227837643f78c83f179eb530d50708fcd8e08f8e0c0f1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2418b865ecb64cab5852e74c18f6ec8bbf70594b78f2bcec13d6a68ef60d1137",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1998-09-21T22:25:23Z",
    "title_canon_sha256": "af281995a0db5e58782ce06d73a97e905c8ad6bccc73733e6e32f6aa1886407c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9809160",
    "kind": "arxiv",
    "version": 2
  }
}