Pith Number

pith:7V7RNMJE

pith:2025:7V7RNMJEJCBEQHWXVCB5I3P3NC

not attested not anchored not stored refs pending

Black hole absorption cross sections: Spin and Regge poles

Mohamed Ould El Hadj

arxiv:2504.19324 v2 · 2025-04-27 · 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{7V7RNMJEJCBEQHWXVCB5I3P3NC}

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

Scattering from compact objects: Debye series and Regge-Debye poles

Receipt and verification

First computed	2026-07-05T11:26:50.471066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd7f16b1244882481ed7a883d46dfb68a3ff5a95511683d1a9462792a2481e9c

Aliases

arxiv: 2504.19324 · arxiv_version: 2504.19324v2 · doi: 10.48550/arxiv.2504.19324 · pith_short_12: 7V7RNMJEJCBE · pith_short_16: 7V7RNMJEJCBEQHWX · pith_short_8: 7V7RNMJE

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/7V7RNMJEJCBEQHWXVCB5I3P3NC \
  | 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: fd7f16b1244882481ed7a883d46dfb68a3ff5a95511683d1a9462792a2481e9c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1bd9bad525ef29044511459d4575a766f4c8264e1692b9adc825c215a6769aa4",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2025-04-27T18:37:24Z",
    "title_canon_sha256": "1c8d4e294eaae87fc74242c2ea5fc4ba2b8251f2e703971b5e9b76c1d6f96d14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.19324",
    "kind": "arxiv",
    "version": 2
  }
}