Pith Number

pith:PXKWDRHI

pith:1994:PXKWDRHILFYBOXM3J354SHF33U

not attested not anchored not stored refs pending

The Space Distribution of the Lyman Alpha Clouds in the Line of Sight to the Z=3.66 QSO 0055-269

A. Fontana, E. Giallongo, S. Cristiani, S. D'Odorico, S. Savaglio

arxiv:astro-ph/9411075 v1 · 1994-11-18 · 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{PXKWDRHILFYBOXM3J354SHF33U}

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	2026-05-18T01:40:24.126024Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7dd561c4e85970175d9b4efbc91cbbdd3c88921717aef6a594ef070e4909f4f9

Aliases

arxiv: astro-ph/9411075 · arxiv_version: astro-ph/9411075v1 · doi: 10.48550/arxiv.astro-ph/9411075 · pith_short_12: PXKWDRHILFYB · pith_short_16: PXKWDRHILFYBOXM3 · pith_short_8: PXKWDRHI

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/PXKWDRHILFYBOXM3J354SHF33U \
  | 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: 7dd561c4e85970175d9b4efbc91cbbdd3c88921717aef6a594ef070e4909f4f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9eff89c2f23cb625c54c5034fd79d719ef4d662eee881db982a77d1a4f177019",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1994-11-18T11:23:00Z",
    "title_canon_sha256": "2da551566bf301cd3895f1a21a45f1aa95adc9cbd81636783ff3efb7f6b520be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9411075",
    "kind": "arxiv",
    "version": 1
  }
}