Pith Number

pith:3U2R55OR

pith:2006:3U2R55OR7SXPH72NH6A3FST5YI

not attested not anchored not stored refs pending

Swift Observations of the highly X-ray variable Narrow Line Seyfert 1 galaxy RX J0148.3-2758

Davis N. Burrows (PSU), Dirk Grupe (PSU), John A. Nousek (PSU), Karen M. Leighly (U Oklahoma), MSSL), Patricia Schady (PSU, Paul T. O'Brien (U Leicester), Stefanie Komossa (MPE)

arxiv:astro-ph/0603590 v2 · 2006-03-21 · 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{3U2R55OR7SXPH72NH6A3FST5YI}

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	2026-05-18T04:36:21.577052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd351ef5d1fcaef3ff4d3f81b2ca7dc2191cc4ac7ca154ded361c586bd4be346

Aliases

arxiv: astro-ph/0603590 · arxiv_version: astro-ph/0603590v2 · doi: 10.48550/arxiv.astro-ph/0603590 · pith_short_12: 3U2R55OR7SXP · pith_short_16: 3U2R55OR7SXPH72N · pith_short_8: 3U2R55OR

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/3U2R55OR7SXPH72NH6A3FST5YI \
  | 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: dd351ef5d1fcaef3ff4d3f81b2ca7dc2191cc4ac7ca154ded361c586bd4be346

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f081496f8af940cc6e399fcdb297f0a8e7285cfc1b266785c6ef81257f2c8031",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-03-21T21:02:48Z",
    "title_canon_sha256": "88c3bc155796cc99193da44f5041c252abd9a10d7f07dbf430522bcbf38ff1d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0603590",
    "kind": "arxiv",
    "version": 2
  }
}