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Pith Number

pith:MU646LH7

pith:2019:MU646LH7PQALT2ASM7AX6XS2QS
not attested not anchored not stored refs pending

Universal Interferometric Signatures of a Black Hole's Photon Ring

Alexandru Lupsasca, Andrew Chael, Andrew Strominger, Charles F. Gammie, Daniel C. M. Palumbo, Daniel Kapec, Dominic W. Pesce, George N. Wong, James M. Moran, Joseph R. Farah, Lindy Blackburn, Maciek Wielgus, Michael D. Johnson, Peter Galison, Ramesh Narayan, Shahar Hadar, Sheperd S. Doeleman

arxiv:1907.04329 v2 · 2019-07-09 · astro-ph.IM · astro-ph.GA · astro-ph.HE · 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{MU646LH7PQALT2ASM7AX6XS2QS}

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

17 papers in Pith

Constitutive birefringence and critical curves in the rotating Garc\'ia--D\'iaz black hole
Broadened Lensing Rings of Compact Boson Stars: Enhanced Imprint of Accretion Flow in Images and Visibilities
Detectability of secondary images from flares near Sgr A* with mock GRAVITY data
Photon spheres in dynamical space-times
On Black Holes Surrounded by Radiation: I. Classical Considerations
Receipt and verification
First computed 2026-07-05T01:20:11.342353Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

653dcf2cff7c00b9e81267c17f5e5a84a281b0cd3e4b51c37a4411905c69076f

Aliases

arxiv: 1907.04329 · arxiv_version: 1907.04329v2 · doi: 10.48550/arxiv.1907.04329 · pith_short_12: MU646LH7PQAL · pith_short_16: MU646LH7PQALT2AS · pith_short_8: MU646LH7
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/MU646LH7PQALT2ASM7AX6XS2QS \
  | 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: 653dcf2cff7c00b9e81267c17f5e5a84a281b0cd3e4b51c37a4411905c69076f
Canonical record JSON 
{
  "metadata": {
    "abstract_canon_sha256": "9d5b02b2498408664e943f273cbefa66d6a63b72af6f0483fb2622cc7875a955",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE",
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-07-09T18:00:00Z",
    "title_canon_sha256": "8f51830b2e5a6c42f6116ea4fbe2c9dde12f9769f97babcb90239f839f308855"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04329",
    "kind": "arxiv",
    "version": 2
  }
}