Pith Number

pith:DZ7IXE5D

pith:1997:DZ7IXE5DMLHLKT6LOPIUEMV3BD

not attested not anchored not stored refs pending

ROSAT HRI observations of the Local Group galaxies IC 10, NGC 147 and NGC 185

A.C. Fabian, M.J. Ward, P.W. Hodge, W.N. Brandt

arxiv:astro-ph/9708211 v1 · 1997-08-22 · 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{DZ7IXE5DMLHLKT6LOPIUEMV3BD}

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	2026-05-18T01:40:16.820694Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e7e8b93a362ceb54fcb73d14232bb08f35bf687a577dfa885ab97bb39e5ea50

Aliases

arxiv: astro-ph/9708211 · arxiv_version: astro-ph/9708211v1 · doi: 10.48550/arxiv.astro-ph/9708211 · pith_short_12: DZ7IXE5DMLHL · pith_short_16: DZ7IXE5DMLHLKT6L · pith_short_8: DZ7IXE5D

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/DZ7IXE5DMLHLKT6LOPIUEMV3BD \
  | 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: 1e7e8b93a362ceb54fcb73d14232bb08f35bf687a577dfa885ab97bb39e5ea50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "551b87c6069b1a24c8043aaf282069a2bb6823d4d4c091ac94f2d1392d252daa",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-08-22T16:19:01Z",
    "title_canon_sha256": "3ca33a8218f768ea1e2b57f7d45a253985b004817aeff96ab9c8f16e8e0e2f81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9708211",
    "kind": "arxiv",
    "version": 1
  }
}