Pith Number

pith:MPJQRVGQ

pith:2019:MPJQRVGQARGJP2KHK4OLPCSDL2

not attested not anchored not stored refs pending

Testing general relativity with supermassive black holes using X-ray reflection spectroscopy

Ashutosh Tripathi, Askar B. Abdikamalov, Cosimo Bambi, Dimitry Ayzenberg, Jelen Wong, Jinli Yan, Sourabh Nampalliwar, Yerong Xu, Yuchan Yang, Yunfeng Yan

arxiv:1905.08012 v1 · 2019-05-20 · gr-qc · astro-ph.HE

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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

Receipt and verification

First computed	2026-05-17T23:43:08.836900Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63d308d4d0044c97e947571cb78a435e866c3b69a7936bc58cc4535673dab9ed

Aliases

arxiv: 1905.08012 · arxiv_version: 1905.08012v1 · doi: 10.48550/arxiv.1905.08012

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/MPJQRVGQARGJP2KHK4OLPCSDL2 \
  | 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: 63d308d4d0044c97e947571cb78a435e866c3b69a7936bc58cc4535673dab9ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b61f9167272bc9f8f87a9b6aaac5a5ba21c79c22d8908b6262e190224dc82413",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-05-20T11:57:48Z",
    "title_canon_sha256": "2fcbddc728a2232b9c9ad3ff704a40dd5ba662f1f4c5fe9bcbd79d584355502f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.08012",
    "kind": "arxiv",
    "version": 1
  }
}