Pith Number

pith:7YSIUPCB

pith:2003:7YSIUPCBT7VRV3SM7YR43E52GQ

not attested not anchored not stored refs pending

Chandra LETGS and XMM-Newton observations of NGC 4593

A. J. Blustin, E. Behar, F. B. S. Paerels, G. Branduardi-Raymont, J.S. Kaastra, K.C. Steenbrugge, M. Sako, R. Walter, S. M. Kahn

arxiv:astro-ph/0306336 v1 · 2003-06-17 · 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{7YSIUPCBT7VRV3SM7YR43E52GQ}

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	2026-07-04T16:37:19.327812Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe248a3c419feb1aee4cfe23cd93ba3431b8cee561fffcaf47a0febf604a1778

Aliases

arxiv: astro-ph/0306336 · arxiv_version: astro-ph/0306336v1 · doi: 10.48550/arxiv.astro-ph/0306336 · pith_short_12: 7YSIUPCBT7VR · pith_short_16: 7YSIUPCBT7VRV3SM · pith_short_8: 7YSIUPCB

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/7YSIUPCBT7VRV3SM7YR43E52GQ \
  | 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: fe248a3c419feb1aee4cfe23cd93ba3431b8cee561fffcaf47a0febf604a1778

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d080d569b60400e70959563ead68a77e40c51db0b0022a2d1468bd1339cc25b2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-06-17T12:59:31Z",
    "title_canon_sha256": "cc725b89c5236f147e3b640247a6641b3b8df1890a998dad52e2cbfd930435a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0306336",
    "kind": "arxiv",
    "version": 1
  }
}