Pith Number

pith:DYVQBO46

pith:2015:DYVQBO46TFQPXQGF5ZCRADVFXH

not attested not anchored not stored refs pending

NuSTAR, XMM-Newton and Suzaku Observations of the Ultraluminous X-ray Source Holmberg II X-1

A. C. Fabian, B. W. Grefenstette, C. J. Hailey, D. Barret, D. J. Walton, D. Stern, F. A. Harrison, F. E. Christensen, F. Fuerst, J. M. Miller, K. K. Madsen, M. Bachetti, M. J. Middleton, S. E. Boggs, V. Rana, W. W. Craig, W. Zhang

arxiv:1504.00023 v2 · 2015-03-31 · astro-ph.HE · astro-ph.CO · 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{DYVQBO46TFQPXQGF5ZCRADVFXH}

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	2026-05-18T01:46:21.488505Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e2b00bb9e9960fbc0c5ee45100ea5b9d5fba284d6016b40a345de2226b18cf2

Aliases

arxiv: 1504.00023 · arxiv_version: 1504.00023v2 · doi: 10.48550/arxiv.1504.00023 · pith_short_12: DYVQBO46TFQP · pith_short_16: DYVQBO46TFQPXQGF · pith_short_8: DYVQBO46

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/DYVQBO46TFQPXQGF5ZCRADVFXH \
  | 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: 1e2b00bb9e9960fbc0c5ee45100ea5b9d5fba284d6016b40a345de2226b18cf2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3dc268c36dcd30e966a066a14dc9506ec9de09a8ed26cd2b30fb87fd1885d90",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-03-31T20:02:20Z",
    "title_canon_sha256": "65fc37e849f15bd94bcd6c56940e104747a01a7e98967fc50ba2d3edab182bf0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.00023",
    "kind": "arxiv",
    "version": 2
  }
}