Pith Number

pith:WO3GJII3

pith:2011:WO3GJII35LE4I3D3STE6B3MRDA

not attested not anchored not stored refs pending

Shadows of Colliding Black Holes

Daisuke Nitta, Naoshi Sugiyama, Takeshi Chiba

arxiv:1106.2425 v2 · 2011-06-13 · gr-qc · astro-ph.CO · 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{WO3GJII35LE4I3D3STE6B3MRDA}

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

Reshaping the inner shadow of a Kerr black hole by a torn accretion disk

Receipt and verification

First computed	2026-05-18T04:10:46.962710Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3b664a11beac9c46c7b94c9e0ed911818babf2d42fc19cea7b7ce37067b94af

Aliases

arxiv: 1106.2425 · arxiv_version: 1106.2425v2 · doi: 10.48550/arxiv.1106.2425 · pith_short_12: WO3GJII35LE4 · pith_short_16: WO3GJII35LE4I3D3 · pith_short_8: WO3GJII3

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/WO3GJII35LE4I3D3STE6B3MRDA \
  | 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: b3b664a11beac9c46c7b94c9e0ed911818babf2d42fc19cea7b7ce37067b94af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ccd352fe9c38ea2b47bff942bea0a580e5bf0bb4e64cc85f1644ab5fcd6466ba",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-06-13T12:16:48Z",
    "title_canon_sha256": "0196403aa96bb9d3686bc4ccf8d7cbf021a33e92d2a9c29f3d36a1d8c86eddd2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.2425",
    "kind": "arxiv",
    "version": 2
  }
}