Pith Number

pith:PAUUXLWH

pith:2005:PAUUXLWHUDGQ3MR7YSDI5MDIDY

not attested not anchored not stored refs pending

Optical Photometric and Spectroscopic study of the Seyfert Galaxy SBS 0748+499

2) ((1) IA UNAM, (2) INAOE), A. Franco-Balderas (1), E. Benitez (1), J. Torrealba (1), V. Chavushyan (1

arxiv:astro-ph/0509572 v2 · 2005-09-20 · 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{PAUUXLWHUDGQ3MR7YSDI5MDIDY}

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	2026-05-18T01:07:30.660902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78294baec7a0cd0db23fc4868eb0681e39c3d24aed5b3ad5204927ece6eed9c7

Aliases

arxiv: astro-ph/0509572 · arxiv_version: astro-ph/0509572v2 · doi: 10.48550/arxiv.astro-ph/0509572 · pith_short_12: PAUUXLWHUDGQ · pith_short_16: PAUUXLWHUDGQ3MR7 · pith_short_8: PAUUXLWH

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/PAUUXLWHUDGQ3MR7YSDI5MDIDY \
  | 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: 78294baec7a0cd0db23fc4868eb0681e39c3d24aed5b3ad5204927ece6eed9c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de0367803aa548ea3dd0da5a419609083a51fbc5e2133d58ba158a18d4716b14",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-09-20T00:02:45Z",
    "title_canon_sha256": "b44152a8d39724326d088c21f3d764a2a736df6ed42061ab4e400a792e3e2d12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0509572",
    "kind": "arxiv",
    "version": 2
  }
}