Pith Number

pith:P3JYI62V

pith:2006:P3JYI62VMUXXSUP74WJZRYHWKL

not attested not anchored not stored refs pending

Metal-rich Damped/sub-Damped Lyman-alpha Quasar Absorbers at z<1

C. Peroux, D. G. York, G. Vladilo, J. D. Meiring, J. T. Lauroesch, P. Khare, R. Ferlet, V. P. Kulkarni

arxiv:astro-ph/0607561 v1 · 2006-07-25 · 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{P3JYI62VMUXXSUP74WJZRYHWKL}

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	2026-07-04T16:59:10.788306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ed3847b55652f7951ffe59398e0f652c4cd70c3ded2c42ddd3f9ff7e7a0af16

Aliases

arxiv: astro-ph/0607561 · arxiv_version: astro-ph/0607561v1 · doi: 10.48550/arxiv.astro-ph/0607561 · pith_short_12: P3JYI62VMUXX · pith_short_16: P3JYI62VMUXXSUP7 · pith_short_8: P3JYI62V

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/P3JYI62VMUXXSUP74WJZRYHWKL \
  | 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: 7ed3847b55652f7951ffe59398e0f652c4cd70c3ded2c42ddd3f9ff7e7a0af16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d3f82d45e666ee8ce8796d3152d3317efc29f7a6a4f5cbef6aa2a373b47a9a1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-07-25T14:02:31Z",
    "title_canon_sha256": "811802146bc9dda294e962d653a67194c3699d41d427f293fe83914bfc602cfc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0607561",
    "kind": "arxiv",
    "version": 1
  }
}