Pith Number

pith:DZCQCCRI

pith:2009:DZCQCCRI56LDDITONDXX2DDJQ6

not attested not anchored not stored refs pending

Is the black hole in GX 339-4 really spinning rapidly?

A. Kubota, H. Takahashi, K. Ebisawa, K. Makishima, K. Nakazawa, P. Gandhi, S. Yamada, T. Dotani, Y. Ueda, Y. Uehara

arxiv:0911.2306 v1 · 2009-11-12 · 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{DZCQCCRI56LDDITONDXX2DDJQ6}

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	2026-05-18T02:34:11.139251Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e45010a28ef9631a26e68ef7d0c6987b88a55fe2dd7302af9f03e1a4e6cb1b7

Aliases

arxiv: 0911.2306 · arxiv_version: 0911.2306v1 · doi: 10.48550/arxiv.0911.2306 · pith_short_12: DZCQCCRI56LD · pith_short_16: DZCQCCRI56LDDITO · pith_short_8: DZCQCCRI

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/DZCQCCRI56LDDITONDXX2DDJQ6 \
  | 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: 1e45010a28ef9631a26e68ef7d0c6987b88a55fe2dd7302af9f03e1a4e6cb1b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71b29d5a31ef425591d3f3c18655102ebcc3749ba23dfcd2aaa5f9da09a3ffe1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-11-12T06:37:56Z",
    "title_canon_sha256": "3e77d11c59162a9817a62c2794366a653d5ab7682dafc4556ac06fe34e7aa889"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.2306",
    "kind": "arxiv",
    "version": 1
  }
}