Pith Number

pith:TOLW4VKJ

pith:2019:TOLW4VKJYOQQYS5PWNHSHLNR73

not attested not anchored not stored refs pending

First M87 Event Horizon Telescope Results. III. Data Processing and Calibration

The Event Horizon Telescope Collaboration

arxiv:1906.11240 v1 · 2019-06-26 · astro-ph.GA · astro-ph.IM · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TOLW4VKJYOQQYS5PWNHSHLNR73}

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

7 papers in Pith

Dimming of Photon Ring due to Photon-Axion Conversion around Kerr Black Holes

Roche limit and stellar disruption in the Simpson--Visser spacetime

Observational Signatures of Rotating Ay\'{o}n-Beato-Garc\'{i}a Black Holes: Shadows, Accretion Disks and Images

Effective null geodesics and black hole images in Kruglov nonlinear electrodynamics

Receipt and verification

First computed	2026-05-17T23:41:24.293784Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b976e5549c3a10c4bafb34f23adb1fee0d841167c57205109bbb9771f1ba7d8

Aliases

arxiv: 1906.11240 · arxiv_version: 1906.11240v1 · doi: 10.48550/arxiv.1906.11240 · pith_short_12: TOLW4VKJYOQQ · pith_short_16: TOLW4VKJYOQQYS5P · pith_short_8: TOLW4VKJ

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/TOLW4VKJYOQQYS5PWNHSHLNR73 \
  | 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: 9b976e5549c3a10c4bafb34f23adb1fee0d841167c57205109bbb9771f1ba7d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41097b10a1a4d9e1a5a58f3d81c3b068542d9921c23607d08ecdccc1d57dfd3f",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-06-26T18:06:48Z",
    "title_canon_sha256": "199e6f4fc489c56142194815013216d4c73676d7761562a27dc537a7f047a9d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.11240",
    "kind": "arxiv",
    "version": 1
  }
}