Pith Number

pith:7CUZ7QJO

pith:2004:7CUZ7QJOCWG43J22D4NJYQRF42

not attested not anchored not stored refs pending

The isolated neutron star X-ray pulsars RX J0420.0-5022 and RX J0806.4-4123: new X-ray and optical observations

A.D. Schwope, B.T. Gaensicke, C. Motch, F. Haberl, K. Reinsch, M. Cropper, R. Turolla, S. Zane, V.E. Zavlin

arxiv:astro-ph/0405485 v1 · 2004-05-25 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7CUZ7QJOCWG43J22D4NJYQRF42}

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	2026-07-04T16:43:49.990566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8a99fc12e158dcda75a1f1a9c4225e6a1fd7700c523d9a9ebb26fd230b83714

Aliases

arxiv: astro-ph/0405485 · arxiv_version: astro-ph/0405485v1 · doi: 10.48550/arxiv.astro-ph/0405485 · pith_short_12: 7CUZ7QJOCWG4 · pith_short_16: 7CUZ7QJOCWG43J22 · pith_short_8: 7CUZ7QJO

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/7CUZ7QJOCWG43J22D4NJYQRF42 \
  | 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: f8a99fc12e158dcda75a1f1a9c4225e6a1fd7700c523d9a9ebb26fd230b83714

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e160c3f77a0819e919d9df95aa50f011c16f228db0dc79d9f010a180f2ddf2f9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-05-25T07:42:09Z",
    "title_canon_sha256": "05dbdbc1b911e0d6ca3958ae6074b190ef036d32d7fe4f7bc31d58a475241d5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0405485",
    "kind": "arxiv",
    "version": 1
  }
}