Pith Number

pith:7CQRQR3H

pith:2001:7CQRQR3H4VKDRC7KWKYWIOJIS2

not attested not anchored not stored refs pending

Rapid X-ray flaring from the direction of the supermassive black hole at the Galactic Centre

(2) Penn State, 3), (3) Isas, (4) UCLA, (5) Caltech), E. D. Feigelson (2), F. K. Baganoff (1), F. Walter (5) ((1) MIT, G. Chartas (2), G. P. Garmire (2), G. R. Ricker (1), L. K. Townsley (2), M. Morris (4), M. W. Bautz (1), W. N. Brandt (2), Y. Maeda (2

arxiv:astro-ph/0109367 v1 · 2001-09-20 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7CQRQR3H4VKDRC7KWKYWIOJIS2}

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

GRMHD and GRRT Simulations of Black Hole Accretion: Flares, Precession, and Complex Spacetimes

Receipt and verification

First computed	2026-07-04T16:24:09.494325Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8a1184767e554388beab2b164392896ab37947543767b75c50fb398d0af56cd

Aliases

arxiv: astro-ph/0109367 · arxiv_version: astro-ph/0109367v1 · doi: 10.48550/arxiv.astro-ph/0109367 · pith_short_12: 7CQRQR3H4VKD · pith_short_16: 7CQRQR3H4VKDRC7K · pith_short_8: 7CQRQR3H

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/7CQRQR3H4VKDRC7KWKYWIOJIS2 \
  | 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: f8a1184767e554388beab2b164392896ab37947543767b75c50fb398d0af56cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b111d94d2ff5a787bd5e03fea8b67ccc401678ca1e6bb3eba7c4552a675551b0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-09-20T23:43:22Z",
    "title_canon_sha256": "e0da99ca0f047bc7322ca46b3eec28db3cdc6cce6b358d9eb0510e9fbb9e2b29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0109367",
    "kind": "arxiv",
    "version": 1
  }
}