Pith Number

pith:2AFDUA25

pith:2021:2AFDUA25G2OQJD77ADGT7ZELO5

not attested not anchored not stored refs pending

Reconstructing Classical Spacetimes from the S-Matrix in Twistor Space

Alfredo Guevara

arxiv:2112.05111 v1 · 2021-12-09 · hep-th · gr-qc · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2AFDUA25G2OQJD77ADGT7ZELO5}

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

1 paper in Pith

Hidden simplicity in the scattering for neutron stars and black holes

Receipt and verification

First computed	2026-07-05T03:39:29.674012Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d00a3a035d369d048fff00cd3fe48b776b46610497bf3dce2b425563eee3d21b

Aliases

arxiv: 2112.05111 · arxiv_version: 2112.05111v1 · doi: 10.48550/arxiv.2112.05111 · pith_short_12: 2AFDUA25G2OQ · pith_short_16: 2AFDUA25G2OQJD77 · pith_short_8: 2AFDUA25

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/2AFDUA25G2OQJD77ADGT7ZELO5 \
  | 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: d00a3a035d369d048fff00cd3fe48b776b46610497bf3dce2b425563eee3d21b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1193d029ece6ca33864b4db2585b8cf0a992edaba054269f9f89f502b5ef6be5",
    "cross_cats_sorted": [
      "gr-qc",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2021-12-09T18:47:54Z",
    "title_canon_sha256": "7486c28c885b3dac3ae7914fcf700c746244b733e2c257c2bcc5d33f58cb4735"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.05111",
    "kind": "arxiv",
    "version": 1
  }
}