Pith Number

pith:RBVDR3CV

pith:2019:RBVDR3CVC3BC4QVV2M6KWCBRYP

not attested not anchored not stored refs pending

Ultraluminous X-ray sources with flat-topped noise and QPO

K. Atapin, M. D. Caballero-Garcia, S. Fabrika

arxiv:1904.04905 v1 · 2019-04-09 · 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{RBVDR3CVC3BC4QVV2M6KWCBRYP}

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	2026-05-17T23:47:57.310906Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

886a38ec5516c22e42b5d33cab0831c3d787b71b7e6586b0f13eddfc202a5be2

Aliases

arxiv: 1904.04905 · arxiv_version: 1904.04905v1 · doi: 10.48550/arxiv.1904.04905 · pith_short_12: RBVDR3CVC3BC · pith_short_16: RBVDR3CVC3BC4QVV · pith_short_8: RBVDR3CV

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/RBVDR3CVC3BC4QVV2M6KWCBRYP \
  | 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: 886a38ec5516c22e42b5d33cab0831c3d787b71b7e6586b0f13eddfc202a5be2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb4669613af69812eca659119775a4e6f99f4b6bb00c34d9d30f919af0c2009d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-04-09T20:52:10Z",
    "title_canon_sha256": "d1330b9803e7a8bbd9d52f563643607ee233016de642cddb1eb693d8a7426046"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.04905",
    "kind": "arxiv",
    "version": 1
  }
}