Pith Number

pith:CXGLK73V

pith:2021:CXGLK73VANU7Y6PQHGXO7VJ46C

not attested not anchored not stored refs pending

XMM-Newton campaign on the ultraluminous X-ray source NGC 247 ULX-1: outflows

A. D'Ai, A. Fabian, A. Robba, C. Pinto, D. Barret, D. Walton, E. Ambrosi, F. Fuerst, F. Pintore, H. Earnshaw, M. Del Santo, M. J. Middleton, P. Kosec, R. Soria, T. P. Roberts, W. N. Alston

arxiv:2104.11164 v2 · 2021-04-22 · 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{CXGLK73VANU7Y6PQHGXO7VJ46C}

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	2026-07-05T02:48:37.164710Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15ccb57f750369fc79f039aeefd53cf08e507b76b7d907828a409dd077440d08

Aliases

arxiv: 2104.11164 · arxiv_version: 2104.11164v2 · doi: 10.48550/arxiv.2104.11164 · pith_short_12: CXGLK73VANU7 · pith_short_16: CXGLK73VANU7Y6PQ · pith_short_8: CXGLK73V

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/CXGLK73VANU7Y6PQHGXO7VJ46C \
  | 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: 15ccb57f750369fc79f039aeefd53cf08e507b76b7d907828a409dd077440d08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2fccc11ea007bd1aefdc0b0e965f4e2d7b6f8fc2363eadd14e35a8fd83b67de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-04-22T16:33:01Z",
    "title_canon_sha256": "6650df2753c370a084bdf8692f10432b681900a13dea40acbb41f42052965eba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.11164",
    "kind": "arxiv",
    "version": 2
  }
}