Pith Number

pith:ULQTSEVG

pith:2013:ULQTSEVGKBK66INGQGC55NIZPP

not attested not anchored not stored refs pending

A search for HI 21cm absorption towards a radio-selected quasar sample II: a new low spin temperature DLA at high redshift

(2) University of Victoria, (3) National Radio Astronomy Observatory, (4) Space Telescope Science Institute, (5) Institute of Astronomy, 6) ((1) National Centre for Radio Astrophysics, (6) International Centre for Radio Astronomy Research, Australia), Brian A. York (4), Cambridge, Canada, Emmanuel Momjian (3), India, Max Pettini (5, Nissim Kanekar (1), Sara L. Ellison (2), UK, USA

arxiv:1301.3424 v1 · 2013-01-15 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ULQTSEVGKBK66INGQGC55NIZPP}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:52:11.917085Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2e13912a65055ef21a68185deb5197bf67b111d33d2c6d2e9e22aa7667d798f

Aliases

arxiv: 1301.3424 · arxiv_version: 1301.3424v1 · doi: 10.48550/arxiv.1301.3424 · pith_short_12: ULQTSEVGKBK6 · pith_short_16: ULQTSEVGKBK66ING · pith_short_8: ULQTSEVG

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/ULQTSEVGKBK66INGQGC55NIZPP \
  | 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: a2e13912a65055ef21a68185deb5197bf67b111d33d2c6d2e9e22aa7667d798f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ec0a1e3e1e50c5177d6840ac2635976accf1e99312ceda47c791d8eabd7b335",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-01-15T17:38:43Z",
    "title_canon_sha256": "57ac59d08f478fcf1f5c6f7e2ca18f37e950e2c1b7d346f7d4f96d5317e58afb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.3424",
    "kind": "arxiv",
    "version": 1
  }
}