Pith Number

pith:CZL6DG4I

pith:2004:CZL6DG4I2DR6TFWHH5HBUHLEMK

not attested not anchored not stored refs pending

Two long-period X-ray pulsars detected in the SMC field around XTE J0055-727

F. Haberl, N. Schartel, P. Rodriguez, R.H.D. Corbet, W. Pietsch

arxiv:astro-ph/0402621 v2 · 2004-02-26 · 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{CZL6DG4I2DR6TFWHH5HBUHLEMK}

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	2026-07-04T16:43:07.339392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1657e19b88d0e3e996c73f4e1a1d6462b8b33beea3a0e777e9420bed3f81fa2f

Aliases

arxiv: astro-ph/0402621 · arxiv_version: astro-ph/0402621v2 · doi: 10.48550/arxiv.astro-ph/0402621 · pith_short_12: CZL6DG4I2DR6 · pith_short_16: CZL6DG4I2DR6TFWH · pith_short_8: CZL6DG4I

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/CZL6DG4I2DR6TFWHH5HBUHLEMK \
  | 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: 1657e19b88d0e3e996c73f4e1a1d6462b8b33beea3a0e777e9420bed3f81fa2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66bd90275f52c9efd5d5ddec3ef25e6722949a05c73395975f9a9b954eead2eb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-02-26T08:44:48Z",
    "title_canon_sha256": "dbc4b4b8716f55ce3e435c50e98d9260e14c28b402f6e8d656f116fe92711b21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0402621",
    "kind": "arxiv",
    "version": 2
  }
}