Pith Number

pith:AQQGWKXG

pith:2010:AQQGWKXGX2OW7VSEOFDYVACO5R

not attested not anchored not stored refs pending

NGC 300 X-1 is a Wolf-Rayet/Black-Hole binary

A. M. T. Pollock (3) ((1) Sheffield UK; (2) Open Univ UK; (3) ESAC, J. S. Clark (2), P. A. Crowther (1), R. Barnard (2), S. Carpano (3), Spain), V. S. Dhillon (1)

arxiv:1001.4616 v1 · 2010-01-26 · astro-ph.SR · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AQQGWKXGX2OW7VSEOFDYVACO5R}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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.

Cited by

1 paper in Pith

Diagnosing the Properties and Evolutionary Fates of Black Hole and Wolf-Rayet X-ray Binaries as Potential Gravitational Wave Sources for the LIGO-Virgo-KAGRA Network

Receipt and verification

First computed	2026-05-18T02:09:29.899017Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04206b2ae6be9d6fd64471478a804eec6f84056f4d24d1d8fe4cc8b1eaabcbc5

Aliases

arxiv: 1001.4616 · arxiv_version: 1001.4616v1 · doi: 10.48550/arxiv.1001.4616 · pith_short_12: AQQGWKXGX2OW · pith_short_16: AQQGWKXGX2OW7VSE · pith_short_8: AQQGWKXG

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/AQQGWKXGX2OW7VSEOFDYVACO5R \
  | 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: 04206b2ae6be9d6fd64471478a804eec6f84056f4d24d1d8fe4cc8b1eaabcbc5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f682561bfc52428dabca183b1b9df92ea77810a230381fea883ee84bfa19c166",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-01-26T10:10:54Z",
    "title_canon_sha256": "34c8bdec4a0c3936cbbdc26c7dac5d7c3dd63a043b56bff8a40f6fa0fb569e9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.4616",
    "kind": "arxiv",
    "version": 1
  }
}