Pith Number

pith:DNUPMSV6

pith:1994:DNUPMSV6BS4JC7GRDPKBQUM7PF

not attested not anchored not stored refs pending

The variable ROSAT X-ray spectrum of the BL Lac 0716+714

A. Comastri, G.G.C. Palumbo, M. Cappi, R. Della Ceca, S. Molendi, T. Maccacaro

arxiv:astro-ph/9409068 v1 · 1994-09-27 · 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{DNUPMSV6BS4JC7GRDPKBQUM7PF}

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	2026-05-18T01:40:24.275638Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b68f64abe0cb8917cd11bd418519f7958ee05a3a3bf00d4116eb3f7786a79c1

Aliases

arxiv: astro-ph/9409068 · arxiv_version: astro-ph/9409068v1 · doi: 10.48550/arxiv.astro-ph/9409068 · pith_short_12: DNUPMSV6BS4J · pith_short_16: DNUPMSV6BS4JC7GR · pith_short_8: DNUPMSV6

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/DNUPMSV6BS4JC7GRDPKBQUM7PF \
  | 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: 1b68f64abe0cb8917cd11bd418519f7958ee05a3a3bf00d4116eb3f7786a79c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d047c1a0471c857c2871e8bee33ccb7add6036cccb047a54e196e952717dc5e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1994-09-27T12:05:17Z",
    "title_canon_sha256": "1d457151f8c2940d8a9b6e90c2df337ff2197ce170211d21ecb9aad3318d0d80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9409068",
    "kind": "arxiv",
    "version": 1
  }
}