Pith Number

pith:AQ6DEVRC

pith:2010:AQ6DEVRC5CWKQT7QBLHKDVAQEJ

not attested not anchored not stored refs pending

Swift observations of the ultraluminous X-ray source Holmberg IX X-1

A.K.H. Kong, H. Feng, P. Kaaret, T.-C. Yen, Y.J. Yang

arxiv:1009.0275 v1 · 2010-09-01 · 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{AQ6DEVRC5CWKQT7QBLHKDVAQEJ}

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	2026-05-18T02:05:38.307157Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

043c325622e8aca84ff00acea1d410225b8a6bd8b7492e6bd8607314f63224f2

Aliases

arxiv: 1009.0275 · arxiv_version: 1009.0275v1 · doi: 10.48550/arxiv.1009.0275 · pith_short_12: AQ6DEVRC5CWK · pith_short_16: AQ6DEVRC5CWKQT7Q · pith_short_8: AQ6DEVRC

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/AQ6DEVRC5CWKQT7QBLHKDVAQEJ \
  | 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: 043c325622e8aca84ff00acea1d410225b8a6bd8b7492e6bd8607314f63224f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eeb6af07c17465da5607bb04304ba5c872bb671ab4bcd9dae7904cea0886dee9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-09-01T20:39:21Z",
    "title_canon_sha256": "bee730c38d4626888252e4ce948c42f3aa3a14bf1a9aa426acd8d24c7f7e9934"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.0275",
    "kind": "arxiv",
    "version": 1
  }
}