Pith Number

pith:RHM7534P

pith:2010:RHM7534PQP2QJXBSCYWXIO2TOB

not attested not anchored not stored refs pending

Fading of the X-ray flux from the black hole in the NGC 4472 globular cluster RZ 2109

Arunav Kundu (Eureka Scientific), Katherine L. Rhode (Indiana University), Stephen E. Zepf (Michigan State University), Thomas J. Maccarone (Southampton)

arxiv:1009.2827 v1 · 2010-09-15 · astro-ph.HE · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RHM7534PQP2QJXBSCYWXIO2TOB}

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.

Receipt and verification

First computed	2026-05-18T02:05:30.293475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89d9feef8f83f504dc32162d743b53705a1042f40c624e4bd3f893037cf65d78

Aliases

arxiv: 1009.2827 · arxiv_version: 1009.2827v1 · doi: 10.48550/arxiv.1009.2827 · pith_short_12: RHM7534PQP2Q · pith_short_16: RHM7534PQP2QJXBS · pith_short_8: RHM7534P

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/RHM7534PQP2QJXBSCYWXIO2TOB \
  | 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: 89d9feef8f83f504dc32162d743b53705a1042f40c624e4bd3f893037cf65d78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b60742812e08edd537387db5c49e326f70197e7c1ea93454f7c7985c350439f3",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-09-15T03:48:55Z",
    "title_canon_sha256": "006f9678ccebad262673f86e345d0ef98a8230fb2442f0769e2b93906b428692"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.2827",
    "kind": "arxiv",
    "version": 1
  }
}