Pith Number

pith:SDL26SWI

pith:1998:SDL26SWIPNEMQ5IHGDJWVF6T7A

not attested not anchored not stored refs pending

The ROSAT BRIGHT survey: I. Identification of an AGN sample with hard ROSAT X-ray spectra

A.D. Schwope, G. Hasinger, H. Brunner, J. Truemper, J.-U. Fischer, S. Neizvestny, Th.Boller, W. Voges

arxiv:astro-ph/9811139 v1 · 1998-11-09 · 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{SDL26SWIPNEMQ5IHGDJWVF6T7A}

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	2026-05-18T01:40:13.600793Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90d7af4ac87b48c8750730d36a97d3f839362fb063fe20771ba60c9ff5166d2a

Aliases

arxiv: astro-ph/9811139 · arxiv_version: astro-ph/9811139v1 · doi: 10.48550/arxiv.astro-ph/9811139 · pith_short_12: SDL26SWIPNEM · pith_short_16: SDL26SWIPNEMQ5IH · pith_short_8: SDL26SWI

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/SDL26SWIPNEMQ5IHGDJWVF6T7A \
  | 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: 90d7af4ac87b48c8750730d36a97d3f839362fb063fe20771ba60c9ff5166d2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0e88cc2534511b58e6281cc7ca802074cdc3156db207f5363213b373f445247",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-11-09T17:10:55Z",
    "title_canon_sha256": "976db62df27e9dc9de6eb29008924356e6e5672415b5446b79b4f8b0db1eea70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9811139",
    "kind": "arxiv",
    "version": 1
  }
}