Pith Number

pith:HN7FYXZI

pith:2022:HN7FYXZI57TBFEQT7DXZAMVSKV

not attested not anchored not stored refs pending

Classical physics from amplitudes on curved backgrounds

Andrea Cristofoli, Anton Ilderton, Tim Adamo

arxiv:2203.13785 v2 · 2022-03-25 · hep-th · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HN7FYXZI57TBFEQT7DXZAMVSKV}

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.

Cited by

3 papers in Pith

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

Five-dimensional Geometry from Spinning Amplitudes

Resumming Scattering Amplitudes for Waveforms

Receipt and verification

First computed	2026-07-05T04:57:05.950956Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b7e5c5f28efe6129213f8ef9032b2556c36567784940dd4d5416b2ed1b7d30e

Aliases

arxiv: 2203.13785 · arxiv_version: 2203.13785v2 · doi: 10.48550/arxiv.2203.13785 · pith_short_12: HN7FYXZI57TB · pith_short_16: HN7FYXZI57TBFEQT · pith_short_8: HN7FYXZI

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/HN7FYXZI57TBFEQT7DXZAMVSKV \
  | 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: 3b7e5c5f28efe6129213f8ef9032b2556c36567784940dd4d5416b2ed1b7d30e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d394caf514770570ebfeadd997137750cbf63da93cc6ae80dbe305b0a4c638cd",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2022-03-25T17:09:26Z",
    "title_canon_sha256": "24e2971fc0987797c4f54b1948dfb48aca361fed4cddc5558af731dcc4301637"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.13785",
    "kind": "arxiv",
    "version": 2
  }
}