Pith Number

pith:ZY5ZRWFB

pith:1996:ZY5ZRWFBKVFOFUJLIKQJOLM4OH

not attested not anchored not stored refs pending

The HST Spectrum of I Zw 1: Implications of the C III^* \lambda 1176 Emission Line

Ari Laor, Buell T. Jannuzi, Richard F. Green, Todd A. Boroson

arxiv:astro-ph/9609161 v1 · 1996-09-24 · 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{ZY5ZRWFBKVFOFUJLIKQJOLM4OH}

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	2026-05-18T04:28:28.278230Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce3b98d8a1554ae2d12b42a0972d9c71f8f092069f9148c89b4da02c774dba70

Aliases

arxiv: astro-ph/9609161 · arxiv_version: astro-ph/9609161v1 · doi: 10.48550/arxiv.astro-ph/9609161 · pith_short_12: ZY5ZRWFBKVFO · pith_short_16: ZY5ZRWFBKVFOFUJL · pith_short_8: ZY5ZRWFB

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/ZY5ZRWFBKVFOFUJLIKQJOLM4OH \
  | 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: ce3b98d8a1554ae2d12b42a0972d9c71f8f092069f9148c89b4da02c774dba70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "069b7a24e21145d3e5b47467bab905a67102955f83090edc84bb81148443b015",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-09-24T17:36:09Z",
    "title_canon_sha256": "aa1fea15a327d81971a2419cd3a1e9a45841d910a9068cdeffb25f03e577d316"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9609161",
    "kind": "arxiv",
    "version": 1
  }
}