Pith Number

pith:OXJJCIM6

pith:2012:OXJJCIM66NTS4NAJ3GIZWIAED2

not attested not anchored not stored refs pending

Constraints on the relative sizes of intervening Mg II-absorbing clouds and quasar emitting regions

Daniele Malesani, Daniel Lawther, Jens Hjorth, Marianne Vestergaard, Morten Schmidt, Troels Paarup

arxiv:1211.4777 v2 · 2012-11-20 · 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{OXJJCIM66NTS4NAJ3GIZWIAED2}

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.

Cited by

1 paper in Pith

COOL-LAMPS IX: A Rare Duo of Quasars Each Lensed by a Single Massive Galaxy Cluster

Receipt and verification

First computed	2026-05-18T03:40:15.617779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75d291219ef3672e3409d9919b20041eb97b3a7ce555002ea7388a2f058487b8

Aliases

arxiv: 1211.4777 · arxiv_version: 1211.4777v2 · doi: 10.48550/arxiv.1211.4777 · pith_short_12: OXJJCIM66NTS · pith_short_16: OXJJCIM66NTS4NAJ · pith_short_8: OXJJCIM6

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/OXJJCIM66NTS4NAJ3GIZWIAED2 \
  | 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: 75d291219ef3672e3409d9919b20041eb97b3a7ce555002ea7388a2f058487b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "874600e7e873f46d7af2bb823cf0072309cc798b368ac6d63b3061f2d9371dc8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-11-20T15:29:28Z",
    "title_canon_sha256": "ac25d56b0d7dbdc4f3fede6fbfb630033dd8e2604859baa349d237a6d3240cda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.4777",
    "kind": "arxiv",
    "version": 2
  }
}