Pith Number

pith:D3Q6RSTP

pith:2001:D3Q6RSTP2NU7KZNZPJWTNK7SBF

not attested not anchored not stored refs pending

A simple analytical model for the abundance of damped Ly-\alpha absorbers

T. Padmanabhan, T. Roy Choudhury

arxiv:astro-ph/0110359 v2 · 2001-10-16 · 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{D3Q6RSTP2NU7KZNZPJWTNK7SBF}

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	2026-05-18T01:07:45.404027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ee1e8ca6fd369f565b97a6d36abf209643c161d5413b8381bd96c2fe2beb5c3

Aliases

arxiv: astro-ph/0110359 · arxiv_version: astro-ph/0110359v2 · doi: 10.48550/arxiv.astro-ph/0110359 · pith_short_12: D3Q6RSTP2NU7 · pith_short_16: D3Q6RSTP2NU7KZNZ · pith_short_8: D3Q6RSTP

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/D3Q6RSTP2NU7KZNZPJWTNK7SBF \
  | 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: 1ee1e8ca6fd369f565b97a6d36abf209643c161d5413b8381bd96c2fe2beb5c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03f0d62f2f2f2a99510bcba28d70bbeff282c76d85ea07c4d83ac6a09a935e2d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-10-16T06:48:01Z",
    "title_canon_sha256": "07667b6e8ca2f97dfcb51e2b81a7c4736e70b01e57c8526e26d9f025923bf86d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0110359",
    "kind": "arxiv",
    "version": 2
  }
}