Pith Number

pith:BIIVN6WZ

pith:2001:BIIVN6WZ2WK5JUGRWOLAXSADUM

not attested not anchored not stored refs pending

Ultraluminous Infrared Galaxies and the Origin of QSOs

D. B. Sanders

arxiv:astro-ph/0109138 v1 · 2001-09-09 · 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{BIIVN6WZ2WK5JUGRWOLAXSADUM}

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	2026-07-04T14:11:27.785143Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a1156fad9d595d4d0d1b3960bc803a304e610bde42e5db2fb1dd7468bbf581f

Aliases

arxiv: astro-ph/0109138 · arxiv_version: astro-ph/0109138v1 · doi: 10.48550/arxiv.astro-ph/0109138 · pith_short_12: BIIVN6WZ2WK5 · pith_short_16: BIIVN6WZ2WK5JUGR · pith_short_8: BIIVN6WZ

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/BIIVN6WZ2WK5JUGRWOLAXSADUM \
  | 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: 0a1156fad9d595d4d0d1b3960bc803a304e610bde42e5db2fb1dd7468bbf581f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a305fd9d6729ca586710f06de44967c5c72dd15895ae6bbccacb97529f4ef9fc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-09-09T05:49:10Z",
    "title_canon_sha256": "b978fdfef156f69f1876e1f3e16b66914ff464d49ed3ebc7ebc685c063d90abe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0109138",
    "kind": "arxiv",
    "version": 1
  }
}