Pith Number

pith:UDT4OCYS

pith:2012:UDT4OCYSAB3WKY5ZRJ6Y75L4FI

not attested not anchored not stored refs pending

Search for cold gas in strong MgII absorbers at 0.5<z<1.5: nature and evolution of 21-cm absorbers

J. Bergeron, N. Gupta, P. Noterdaeme, P. Petitjean, R. Srianand, S. Muzahid

arxiv:1205.4029 v2 · 2012-05-17 · 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{UDT4OCYSAB3WKY5ZRJ6Y75L4FI}

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	2026-05-18T01:57:25.939235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0e7c70b1200776563b98a7d8ff57c2a1bef5532b20188cc1482d3ae5eba310b

Aliases

arxiv: 1205.4029 · arxiv_version: 1205.4029v2 · doi: 10.48550/arxiv.1205.4029 · pith_short_12: UDT4OCYSAB3W · pith_short_16: UDT4OCYSAB3WKY5Z · pith_short_8: UDT4OCYS

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/UDT4OCYSAB3WKY5ZRJ6Y75L4FI \
  | 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: a0e7c70b1200776563b98a7d8ff57c2a1bef5532b20188cc1482d3ae5eba310b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dda53cf247edec66cb9bbd1598908215f33556c975ae945e4c125090ea79628a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-05-17T20:00:06Z",
    "title_canon_sha256": "7943c33bfbec78238b93bc9d63c0b676e24b499781906d5ba666d10cd19db1ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.4029",
    "kind": "arxiv",
    "version": 2
  }
}