Pith Number

pith:4BRFBU2K

pith:2021:4BRFBU2KGDFAMW4YGPOHWBH743

not attested not anchored not stored refs pending

Classical gravitational scattering from a gauge-invariant double copy

Andreas Brandhuber, Congkao Wen, Gabriele Travaglini, Gang Chen

arxiv:2108.04216 v2 · 2021-08-09 · hep-th · gr-qc

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4BRFBU2KGDFAMW4YGPOHWBH743}

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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.

Cited by

11 papers in Pith

NLO Angular Impulse and Leading Singularities to all orders in spin for Kerr Black Holes

Weak-field waveforms for generic relativistic orbits

Lecture notes: Introduction to the Off-shell Double Copy Program

Gravitational Compton scattering at the fourth post-Minkowskian order

Analytic structure of the high-energy gravitational amplitude: multi-H diagrams and classical 5PM logarithms

Receipt and verification

First computed	2026-07-05T03:28:23.194078Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e06250d34a30ca065b9833dc7b04ffe6c196ba664f73067043adcc71e605fe70

Aliases

arxiv: 2108.04216 · arxiv_version: 2108.04216v2 · doi: 10.48550/arxiv.2108.04216 · pith_short_12: 4BRFBU2KGDFA · pith_short_16: 4BRFBU2KGDFAMW4Y · pith_short_8: 4BRFBU2K

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/4BRFBU2KGDFAMW4YGPOHWBH743 \
  | 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: e06250d34a30ca065b9833dc7b04ffe6c196ba664f73067043adcc71e605fe70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "706e07f339a2c598dfc282eb4127cba2d1a04d6df8c230469f51f614b9e4ca8b",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2021-08-09T17:59:35Z",
    "title_canon_sha256": "d0179787effe7b995906814b5c99cdc8cf9c5e8d8f7266f63fadaa68f93e05f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.04216",
    "kind": "arxiv",
    "version": 2
  }
}