Pith Number

pith:GD72N22U

pith:2003:GD72N22UQRARDOA57TKTNOWWCS

not attested not anchored not stored refs pending

A long hard look at MCG-6-30-15 with XMM-Newton and BeppoSAX

2), (2) University of Leicester), A. C. Fabian (1), A. K. Turner (1) ((1) IoA, Cambridge, K. Iwasawa (1), S. Vaughan (1

arxiv:astro-ph/0308460 v1 · 2003-08-26 · 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{GD72N22UQRARDOA57TKTNOWWCS}

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	2026-07-04T16:37:25.899297Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30ffa6eb54844111b81dfcd536bad6148375303f063087f0e07cfff4ab956c91

Aliases

arxiv: astro-ph/0308460 · arxiv_version: astro-ph/0308460v1 · doi: 10.48550/arxiv.astro-ph/0308460 · pith_short_12: GD72N22UQRAR · pith_short_16: GD72N22UQRARDOA5 · pith_short_8: GD72N22U

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/GD72N22UQRARDOA57TKTNOWWCS \
  | 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: 30ffa6eb54844111b81dfcd536bad6148375303f063087f0e07cfff4ab956c91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5f4c54b4d3cc60103ff7e0486699255e915fd29f79638a14267df9fe6b196f3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-08-26T10:42:46Z",
    "title_canon_sha256": "475c917a19c2419da610ef9f553d24e92705ddaa9e8630d3022d7701b339d7ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0308460",
    "kind": "arxiv",
    "version": 1
  }
}