Pith Number

pith:6YMBQRBV

pith:2019:6YMBQRBVNW2HS5V6YL6COFY4PK

not attested not anchored not stored refs pending

Lensing and shadow of a black hole surrounded by a heavy accretion disk

Carlos A. R. Herdeiro, Jos\'e P. S. Lemos, Nelson A. Eir\'o, Pedro V. P. Cunha

arxiv:1912.08833 v2 · 2019-12-18 · gr-qc · astro-ph.HE · 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{6YMBQRBVNW2HS5V6YL6COFY4PK}

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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

✓ 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

Probing Kalb-Ramond gravity with charged rotating black holes: constraints from EHT observations

Receipt and verification

First computed	2026-07-05T05:51:37.760506Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6181844356db47976bec2fc27171c7aa71125f5388d17f9af81e3848c278534

Aliases

arxiv: 1912.08833 · arxiv_version: 1912.08833v2 · doi: 10.48550/arxiv.1912.08833 · pith_short_12: 6YMBQRBVNW2H · pith_short_16: 6YMBQRBVNW2HS5V6 · pith_short_8: 6YMBQRBV

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/6YMBQRBVNW2HS5V6YL6COFY4PK \
  | 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: f6181844356db47976bec2fc27171c7aa71125f5388d17f9af81e3848c278534

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "470e0d6fc1500e1b7f3269fc93046694c113b9f31a616645b94a6bb12b793d24",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-12-18T19:02:13Z",
    "title_canon_sha256": "0944837816b75860ec34457565327e2d0569c5148dc1e23d0577121bf9e365e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.08833",
    "kind": "arxiv",
    "version": 2
  }
}