Pith Number

pith:XQLEF6OY

pith:2000:XQLEF6OYDEMDFH6JY7RFYRMBXC

not attested not anchored not stored refs pending

The X-ray spectra of Compton-thick Seyfert 2 galaxies as seen by BeppoSAX

A.C. Fabian, G. Malaguti, G. Matt, K. Iwasawa, L. Bassani, M. Guainazzi

arxiv:astro-ph/0005219 v1 · 2000-05-10 · astro-ph

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

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	2026-05-18T01:07:46.698606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc1642f9d81918329fc9c7e25c4581b8bc2b62a99a4afead3edb8ae724d1d620

Aliases

arxiv: astro-ph/0005219 · arxiv_version: astro-ph/0005219v1 · doi: 10.48550/arxiv.astro-ph/0005219 · pith_short_12: XQLEF6OYDEMD · pith_short_16: XQLEF6OYDEMDFH6J · pith_short_8: XQLEF6OY

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/XQLEF6OYDEMDFH6JY7RFYRMBXC \
  | 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: bc1642f9d81918329fc9c7e25c4581b8bc2b62a99a4afead3edb8ae724d1d620

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51c2099ee51802b1c758a7c1f1e4fdcc3e714216d4b27bef34b923e39aadeb3f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-05-10T11:27:13Z",
    "title_canon_sha256": "825139a972b36e7f81ef545612a415e6fefea6ede6a3c60ddc2c905db4008fd4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0005219",
    "kind": "arxiv",
    "version": 1
  }
}