Pith Number

pith:XQIS246Q

pith:1996:XQIS246Q7VJ4EEWZ32YLBJMN25

not attested not anchored not stored refs pending

APM z>4 QSO Survey: Distribution and Evolution of High Column Density HI Absorbers

L.J. Storrie-Lombardi, M.J. Irwin, R.G. McMahon

arxiv:astro-ph/9608146 v1 · 1996-08-22 · 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{XQIS246Q7VJ4EEWZ32YLBJMN25}

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	2026-05-18T01:40:19.508558Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc112d73d0fd53c212d9deb0b0a58dd75a965d22048e9c11171767dfc679aadd

Aliases

arxiv: astro-ph/9608146 · arxiv_version: astro-ph/9608146v1 · doi: 10.48550/arxiv.astro-ph/9608146 · pith_short_12: XQIS246Q7VJ4 · pith_short_16: XQIS246Q7VJ4EEWZ · pith_short_8: XQIS246Q

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/XQIS246Q7VJ4EEWZ32YLBJMN25 \
  | 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: bc112d73d0fd53c212d9deb0b0a58dd75a965d22048e9c11171767dfc679aadd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70d3fe79b1342134d4499ad751b724975a754394b17e2360ded4d45cab381e59",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-08-22T18:55:36Z",
    "title_canon_sha256": "2fcf6de2ac88abee77b1a05cb68b94769123f23d068cbf894ab5d72480cc8e43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9608146",
    "kind": "arxiv",
    "version": 1
  }
}