Pith Number

pith:NJX4C6XY

pith:2001:NJX4C6XYKDSGSEDBXUDSYK2LCF

not attested not anchored not stored refs pending

Quasi-Stellar Objects, Ultraluminous IR Galaxies, and Mergers

2), (2) Institute for Astronomy, Alan Stockton (2) ((1) LLNL, Gabriela Canalizo (1, U. Hawaii)

arxiv:astro-ph/0103332 v1 · 2001-03-21 · 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{NJX4C6XYKDSGSEDBXUDSYK2LCF}

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.

Cited by

1 paper in Pith

Performance of morphological classifiers for galaxy mergers compared to current machine learning methods

Receipt and verification

First computed	2026-07-04T16:22:54.570777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a6fc17af850e4691061bd072c2b4b115ab343e790fe25c649c0b642726bc805

Aliases

arxiv: astro-ph/0103332 · arxiv_version: astro-ph/0103332v1 · doi: 10.48550/arxiv.astro-ph/0103332 · pith_short_12: NJX4C6XYKDSG · pith_short_16: NJX4C6XYKDSGSEDB · pith_short_8: NJX4C6XY

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/NJX4C6XYKDSGSEDBXUDSYK2LCF \
  | 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: 6a6fc17af850e4691061bd072c2b4b115ab343e790fe25c649c0b642726bc805

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d9927319527d3efb2d65ceb056dc7105b4b1a93af82912820949a396ea900b7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-03-21T06:47:24Z",
    "title_canon_sha256": "7e14f6224af91238bba39e741d8ba42cb466b10721c68d47d4ea11feb121ed44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0103332",
    "kind": "arxiv",
    "version": 1
  }
}