Pith Number

pith:4ZY2UX6V

pith:2005:4ZY2UX6VFLC7TV6TPOOSLDBD36

not attested not anchored not stored refs pending

XMM-Newton and optical follow-up observations of SDSS J093249.57+472523.0 and SDSS J102347.67+003841.2

Arne Henden, Bing Chen, Gary Schmidt, J. Brinkmann, Lee Homer, Nicole M. Silvestri, Paula Szkody, Scott F. Anderson

arxiv:astro-ph/0509802 v2 · 2005-09-27 · 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{4ZY2UX6VFLC7TV6TPOOSLDBD36}

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	2026-07-04T15:25:38.474861Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e671aa5fd52ac5f9d7d37b9d258c23dfb2d9df8ef0af0bc76af006d590af2604

Aliases

arxiv: astro-ph/0509802 · arxiv_version: astro-ph/0509802v2 · doi: 10.48550/arxiv.astro-ph/0509802 · pith_short_12: 4ZY2UX6VFLC7 · pith_short_16: 4ZY2UX6VFLC7TV6T · pith_short_8: 4ZY2UX6V

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/4ZY2UX6VFLC7TV6TPOOSLDBD36 \
  | 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: e671aa5fd52ac5f9d7d37b9d258c23dfb2d9df8ef0af0bc76af006d590af2604

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37353f10e51116a9be10147b0a2afc217865cb7480c210b10d34b3f8b38abbb2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-09-27T10:51:22Z",
    "title_canon_sha256": "f2860a425d8bfa4d7473dc901d37517ca48c152c4d31ee964d40ae1bd34c20a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0509802",
    "kind": "arxiv",
    "version": 2
  }
}