Pith Number

pith:2TJCR2HQ

pith:2011:2TJCR2HQ3IGKTMUEUWHYIO3R4W

not attested not anchored not stored refs pending

A Groundbased Imaging Study of Galaxies Causing DLA, subDLA, and LLS Absorption in Quasar Spectra

Anna M. Quider, Daniel B. Nestor, David A. Turnshek, Eric M. Monier, Michele Belfort-Mihalyi, Sandhya M. Rao

arxiv:1103.4047 v3 · 2011-03-21 · 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{2TJCR2HQ3IGKTMUEUWHYIO3R4W}

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	2026-05-18T02:02:48.743961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4d228e8f0da0ca9b284a58f843b71e599498e48108ef44cd8c2f4dbe5a66706

Aliases

arxiv: 1103.4047 · arxiv_version: 1103.4047v3 · doi: 10.48550/arxiv.1103.4047 · pith_short_12: 2TJCR2HQ3IGK · pith_short_16: 2TJCR2HQ3IGKTMUE · pith_short_8: 2TJCR2HQ

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/2TJCR2HQ3IGKTMUEUWHYIO3R4W \
  | 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: d4d228e8f0da0ca9b284a58f843b71e599498e48108ef44cd8c2f4dbe5a66706

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05c27b1af5e243f5cecbed9dd58f8e63d3328c34ae5d2a27249dce5078b7530e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-03-21T15:14:48Z",
    "title_canon_sha256": "9909a416c246e1991d9f87deabffcc1a00a6c7aa47dfc0329835157baf774fa5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.4047",
    "kind": "arxiv",
    "version": 3
  }
}