Pith Number

pith:T4GHZK4N

pith:2013:T4GHZK4N5ER55DA6FIYA3XXX7Y

not attested not anchored not stored refs pending

The M87 Black Hole Mass from Gas-dynamical Models of Space Telescope Imaging Spectrograph Observations

(2) University of California, (3) The Observatories of the Carnegie Institution for Science, (4) University of Hertfordshire), Aaron J. Barth (2), Irvine, Jonelle L. Walsh (1), Luis C. Ho (3), Marc Sarzi (4) ((1) The University of Texas at Austin

arxiv:1304.7273 v1 · 2013-04-26 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T4GHZK4N5ER55DA6FIYA3XXX7Y}

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

Investigating the interplay of the braneworld gravity and the plasma environment on the black hole shadow

Receipt and verification

First computed	2026-05-18T01:50:21.211942Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f0c7cab8de923de8c1e2a300ddef7fe345a8b1108473972978b593fe22b53b5

Aliases

arxiv: 1304.7273 · arxiv_version: 1304.7273v1 · doi: 10.48550/arxiv.1304.7273 · pith_short_12: T4GHZK4N5ER5 · pith_short_16: T4GHZK4N5ER55DA6 · pith_short_8: T4GHZK4N

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/T4GHZK4N5ER55DA6FIYA3XXX7Y \
  | 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: 9f0c7cab8de923de8c1e2a300ddef7fe345a8b1108473972978b593fe22b53b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "588032a8cac8d42bb989471dd43f13d4964768a6732606e49541e6c6d2a9f168",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-04-26T20:02:17Z",
    "title_canon_sha256": "5d7085946652273f18dd7412ef77b3907142628af1b3074e291e71b52495fdb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.7273",
    "kind": "arxiv",
    "version": 1
  }
}