Pith Number

pith:JOYZNYXX

pith:2011:JOYZNYXXHVK7RPA5U4IMYAPLRH

not attested not anchored not stored refs pending

A comprehensive approach to analyzing the XMM-Newton data of Seyfert 1 galaxies

\'Angeles I. D\'iaz, Guillermo F. H\"agele, Mar\'ia Santos-Lle\'o, M\'onica V. Cardaci, Pedro Rodr\'iguez-Pascual, Yair Krongold

arxiv:1105.2218 v1 · 2011-05-11 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JOYZNYXXHVK7RPA5U4IMYAPLRH}

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	2026-05-18T04:22:21.264557Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bb196e2f73d55f8bc1da710cc01eb89e4ad79b4b78bb3e4c271009f08e07bbb

Aliases

arxiv: 1105.2218 · arxiv_version: 1105.2218v1 · doi: 10.48550/arxiv.1105.2218 · pith_short_12: JOYZNYXXHVK7 · pith_short_16: JOYZNYXXHVK7RPA5 · pith_short_8: JOYZNYXX

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/JOYZNYXXHVK7RPA5U4IMYAPLRH \
  | 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: 4bb196e2f73d55f8bc1da710cc01eb89e4ad79b4b78bb3e4c271009f08e07bbb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bae2560ed466c34aa9b5a7c6c5eb90a75aae0589542d34371092c94daa2205c0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-05-11T15:18:40Z",
    "title_canon_sha256": "b0d44a93b2fa3ab7f5f04f4f2109e3c9bbd3af6ffceb04c48e92e7bd6175742f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.2218",
    "kind": "arxiv",
    "version": 1
  }
}