Pith Number

pith:AE4BEBEX

pith:2009:AE4BEBEXHQ5KVDZGWAK4X7SFCZ

not attested not anchored not stored refs pending

The evolution of the high-energy cut-off in the X-Ray spectrum of the GX 339-4 across a hard-to-soft transition

J. Homan, S. Motta, T. Belloni

arxiv:0908.2451 v2 · 2009-08-17 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AE4BEBEXHQ5KVDZGWAK4X7SFCZ}

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	2026-05-18T02:12:25.854026Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01381204973c3aaa8f26b015cbfe4516787520d7b196d9deb527587561134bf2

Aliases

arxiv: 0908.2451 · arxiv_version: 0908.2451v2 · doi: 10.48550/arxiv.0908.2451 · pith_short_12: AE4BEBEXHQ5K · pith_short_16: AE4BEBEXHQ5KVDZG · pith_short_8: AE4BEBEX

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/AE4BEBEXHQ5KVDZGWAK4X7SFCZ \
  | 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: 01381204973c3aaa8f26b015cbfe4516787520d7b196d9deb527587561134bf2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e59d7a411d5e6fa001c1a5bf896aea0e78d73fd8eaf708b771424d43e9f8782",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-08-17T22:14:37Z",
    "title_canon_sha256": "5a4d616fe92efd3f458c80720eeb2d39de114167c16a0258626dbb9302566689"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.2451",
    "kind": "arxiv",
    "version": 2
  }
}