Pith Number

pith:EN42RRZJ

pith:1998:EN42RRZJL2T7ZMXRHYNLRGL7H4

not attested not anchored not stored refs pending

An ISO survey of PAH features in Ultraluminous Infrared Galaxies

A. F. M. Moorwood, D. Lutz, D. Rigopoulou, D. Tran, H. W. W. Spoon, R. Genzel

arxiv:astro-ph/9808330 v1 · 1998-08-28 · 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{EN42RRZJL2T7ZMXRHYNLRGL7H4}

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	2026-05-18T01:07:37.119663Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2379a8c7295ea7fcb2f13e1ab8997f3f2aa496a65b18d65d4153e79f038141d6

Aliases

arxiv: astro-ph/9808330 · arxiv_version: astro-ph/9808330v1 · doi: 10.48550/arxiv.astro-ph/9808330 · pith_short_12: EN42RRZJL2T7 · pith_short_16: EN42RRZJL2T7ZMXR · pith_short_8: EN42RRZJ

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/EN42RRZJL2T7ZMXRHYNLRGL7H4 \
  | 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: 2379a8c7295ea7fcb2f13e1ab8997f3f2aa496a65b18d65d4153e79f038141d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "076151bef304a9244b8fac49a7a35d5b7650391e123b19fdbeddbef90458d795",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-08-28T15:36:01Z",
    "title_canon_sha256": "86608369abc73170815aaa8fa512b5176d50f0b9e62cc7567e8a6211b5cfba10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9808330",
    "kind": "arxiv",
    "version": 1
  }
}