Pith Number

pith:2YRUHI4J

pith:2012:2YRUHI4JVWECKVIAOXJP4KA454

not attested not anchored not stored refs pending

On the sizes of z>2 Damped Lyman-alpha Absorbing Galaxies

B. Milvang-Jensen, C. Ledoux, J.-K. Krogager, J. P. U. Fynbo, L. Christensen, M. Sparre, P. M{\o}ller, P. Noterdaeme

arxiv:1204.2833 v1 · 2012-04-12 · 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{2YRUHI4JVWECKVIAOXJP4KA454}

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	2026-05-18T01:57:52.940600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d62343a389ad8825550075d2fe281cef2cbf0a0d1722010bf8efaac654f6a182

Aliases

arxiv: 1204.2833 · arxiv_version: 1204.2833v1 · doi: 10.48550/arxiv.1204.2833 · pith_short_12: 2YRUHI4JVWEC · pith_short_16: 2YRUHI4JVWECKVIA · pith_short_8: 2YRUHI4J

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/2YRUHI4JVWECKVIAOXJP4KA454 \
  | 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: d62343a389ad8825550075d2fe281cef2cbf0a0d1722010bf8efaac654f6a182

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6003c59d658b9aa48c0730f1a7e4d6e2c8c37fbbd3577ea51d034020a46534db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-04-12T20:00:23Z",
    "title_canon_sha256": "efd95d836eceef470a240002ebb711ac63ca51da18b421031fd699e36fd1fa9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.2833",
    "kind": "arxiv",
    "version": 1
  }
}