Pith Number

pith:DNSOCSKV

pith:1996:DNSOCSKVUUBP5UXZ23ATPOEUZJ

not attested not anchored not stored refs pending

Faint galaxies close to QSOs with damped Lyman-alpha absorption systems

A. Aragon-Salamanca, K.S. O'Brien, R.S. Ellis

arxiv:astro-ph/9603012 v1 · 1996-03-05 · 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{DNSOCSKVUUBP5UXZ23ATPOEUZJ}

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	2026-05-18T01:40:21.675663Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b64e14955a502fed2f9d6c137b894ca57149f0c02bd625076b848c5a5c59e0d

Aliases

arxiv: astro-ph/9603012 · arxiv_version: astro-ph/9603012v1 · doi: 10.48550/arxiv.astro-ph/9603012 · pith_short_12: DNSOCSKVUUBP · pith_short_16: DNSOCSKVUUBP5UXZ · pith_short_8: DNSOCSKV

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/DNSOCSKVUUBP5UXZ23ATPOEUZJ \
  | 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: 1b64e14955a502fed2f9d6c137b894ca57149f0c02bd625076b848c5a5c59e0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72bed537faf121893e9dc93e662656a5169fe41c8d03b6674c1b62659ae99f4e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-03-05T13:12:00Z",
    "title_canon_sha256": "31938530bfbdd0bab7f102f87a30ef16933de6803d2e076088336eb8ba884e50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9603012",
    "kind": "arxiv",
    "version": 1
  }
}