Pith Number

pith:2XRTJBTK

pith:2002:2XRTJBTKUDO2Y4QEMXRIQKKU4V

not attested not anchored not stored refs pending

First Results from a XMM-Newton Survey of a Distance-Limited (D < 22 Mpc) Sample of Seyfert Galaxies. II - The Galactic Serendipitous Sources

E. Piconcelli, F. Gianotti, F. Panessa, G. Di Cocco, J. B. Stephen, J. Mulchaey, L. Bassani, L. C. Ho, L. Foschini, M. Cappi, M. Dadina, M. Trifoglio

arxiv:astro-ph/0202247 v1 · 2002-02-13 · 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{2XRTJBTKUDO2Y4QEMXRIQKKU4V}

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	2026-07-04T14:11:54.198191Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5e334866aa0ddac720465e2882954e567564b03d81f5d07417208de7fb30f62

Aliases

arxiv: astro-ph/0202247 · arxiv_version: astro-ph/0202247v1 · doi: 10.48550/arxiv.astro-ph/0202247 · pith_short_12: 2XRTJBTKUDO2 · pith_short_16: 2XRTJBTKUDO2Y4QE · pith_short_8: 2XRTJBTK

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/2XRTJBTKUDO2Y4QEMXRIQKKU4V \
  | 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: d5e334866aa0ddac720465e2882954e567564b03d81f5d07417208de7fb30f62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe9ffc69e22ee55153f627fb59f88217e56234376056c348f4c8b42113bd76e5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-02-13T09:32:05Z",
    "title_canon_sha256": "0a23edb80591bf1848b7aaafc94645e6d627ad7e856b681d64c97874a977157e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0202247",
    "kind": "arxiv",
    "version": 1
  }
}