Pith Number

pith:HEK4LQQT

pith:1996:HEK4LQQTOT727BMFVCASYG7HTS

not attested not anchored not stored refs pending

ROSAT PSPC and Hri Observations of the Composite Starburst/Seyfert 2 Galaxy NGC 1672

J.P. Halpern, K. Iwasawa, W.N. Brandt

arxiv:astro-ph/9604162 v1 · 1996-04-26 · 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{HEK4LQQTOT727BMFVCASYG7HTS}

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	2026-05-18T01:40:21.384669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3915c5c21374ffaf8585a8812c1be79c962a406c4267420bf9dbf99897881ad0

Aliases

arxiv: astro-ph/9604162 · arxiv_version: astro-ph/9604162v1 · doi: 10.48550/arxiv.astro-ph/9604162 · pith_short_12: HEK4LQQTOT72 · pith_short_16: HEK4LQQTOT727BMF · pith_short_8: HEK4LQQT

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/HEK4LQQTOT727BMFVCASYG7HTS \
  | 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: 3915c5c21374ffaf8585a8812c1be79c962a406c4267420bf9dbf99897881ad0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6134ab9f7e8629ac9ad3e77e012956338c49bd22ee6dd33d44047a27047cac2b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-04-26T21:55:42Z",
    "title_canon_sha256": "032e381de1b27bd71efdb54108eda332e2d0176b95fbde1449c16098decd87e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9604162",
    "kind": "arxiv",
    "version": 1
  }
}