Pith Number

pith:YHS6B5SR

pith:2019:YHS6B5SRFYZVVY6LABSA7GX3AW

not attested not anchored not stored refs pending

Simulations of imaging the event horizon of Sagittarius A* from space

Christiaan Brinkerink, Freek Roelofs, Heino Falcke, Leonid I. Gurvits, Luciano Rezzolla, Manuel Martin-Neira, Marc Klein-Wolt, Michael Kramer, Monika Mo\'scibrodzka, Remo Tilanus, Volodymyr Kudriashov

arxiv:1904.04934 v1 · 2019-04-09 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YHS6B5SRFYZVVY6LABSA7GX3AW}

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

Light Propagation Prescriptions for Black Hole Movies

Receipt and verification

First computed	2026-05-17T23:44:54.469123Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1e5e0f6512e335ae3cb00640f9afb058af36bb01ac8e5dd2e8a0d49c9e84391

Aliases

arxiv: 1904.04934 · arxiv_version: 1904.04934v1 · doi: 10.48550/arxiv.1904.04934 · pith_short_12: YHS6B5SRFYZV · pith_short_16: YHS6B5SRFYZVVY6L · pith_short_8: YHS6B5SR

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/YHS6B5SRFYZVVY6LABSA7GX3AW \
  | 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: c1e5e0f6512e335ae3cb00640f9afb058af36bb01ac8e5dd2e8a0d49c9e84391

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23402c1da301b33edd27ac960727c07c15d436a1cfb82735a50c4d69d2493704",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-04-09T22:11:58Z",
    "title_canon_sha256": "6e0faa55bc2566832e652dd753302df315d6266c20554a41fe3677e3f9f20cc6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.04934",
    "kind": "arxiv",
    "version": 1
  }
}