Pith Number

pith:IR65PJWF

pith:2022:IR65PJWFCZPTY6WPOWKKXVRVVJ

not attested not anchored not stored refs pending

Twistor quadrics and black holes

Bernardo Araneda

arxiv:2212.10491 v1 · 2022-12-20 · gr-qc · 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{IR65PJWFCZPTY6WPOWKKXVRVVJ}

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

2 papers in Pith

Schwarzschild black holes from twistor space

Graviton scattering on self-dual black holes

Receipt and verification

First computed	2026-07-05T05:27:08.059239Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

447dd7a6c5165f3c7acf7594abd635aa456203dc415ad06e9af588d1efb76d1e

Aliases

arxiv: 2212.10491 · arxiv_version: 2212.10491v1 · doi: 10.48550/arxiv.2212.10491 · pith_short_12: IR65PJWFCZPT · pith_short_16: IR65PJWFCZPTY6WP · pith_short_8: IR65PJWF

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/IR65PJWFCZPTY6WPOWKKXVRVVJ \
  | 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: 447dd7a6c5165f3c7acf7594abd635aa456203dc415ad06e9af588d1efb76d1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02975e3229c8c9ebfcc28f30f34b951bb97bfc9b6e54f1a42377feb49ef28ef2",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2022-12-20T18:06:31Z",
    "title_canon_sha256": "4a1000042abfa836e126bcb6431f5a6f8379ad3bd4dd093331d4de1452280cb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2212.10491",
    "kind": "arxiv",
    "version": 1
  }
}