Pith Number

pith:Q4JDBSAJ

pith:2010:Q4JDBSAJHU5BXZ2MBCJFT4EW5R

not attested not anchored not stored refs pending

SOAR Imaging of sub-Damped Lyman-Alpha Systems at z<1

2), (2) U. Louisville, (3) U.S.C., (4) Laboratoire d'Astrophysique de Marseille, (5) Utkal University, (6) U. Chicago, 7) ((1) U. Massachusetts, (7) Enrico Fermi Institute), Celine Peroux (4), Donald G. York (6, James T. Lauroesch (2), Joseph D. Meiring (1, Lutz Haberzettl (2), Pushpa Khare (5), Varsha P. Kulkarni (3)

arxiv:1009.0223 v1 · 2010-09-01 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q4JDBSAJHU5BXZ2MBCJFT4EW5R}

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	2026-05-18T02:05:38.433153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

871230c8093d3a1be74c089259f096ec585ec58aa6801ec3ff20a5e1620b4bf5

Aliases

arxiv: 1009.0223 · arxiv_version: 1009.0223v1 · doi: 10.48550/arxiv.1009.0223 · pith_short_12: Q4JDBSAJHU5B · pith_short_16: Q4JDBSAJHU5BXZ2M · pith_short_8: Q4JDBSAJ

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/Q4JDBSAJHU5BXZ2MBCJFT4EW5R \
  | 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: 871230c8093d3a1be74c089259f096ec585ec58aa6801ec3ff20a5e1620b4bf5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9eb2c7bb09651fceac65e39dd57b4c69daf7e7bc714ec3b9caa5f15552903c8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-09-01T17:10:30Z",
    "title_canon_sha256": "9aedabe755459c417b1e8811813edb4dcd4ec0e0cbdddf3dad25f71d1fb01e28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.0223",
    "kind": "arxiv",
    "version": 1
  }
}