Pith Number

pith:7MMKCNLY

pith:2012:7MMKCNLYHSL6CAHFGASWOH56D3

not attested not anchored not stored refs pending

Variability in Quasar Broad Absorption Line Outflows

Daniel M. Capellupo, Fred Hamann, Joseph C. Shields, Jules Halpern, Paola Rodr\'iguez Hidalgo, Tom A. Barlow

arxiv:1204.6048 v1 · 2012-04-26 · 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{7MMKCNLYHSL6CAHFGASWOH56D3}

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	2026-05-18T03:56:47.227971Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb18a135783c97e100e53025671fbe1efca70238da4ee6e0e87a892a941184af

Aliases

arxiv: 1204.6048 · arxiv_version: 1204.6048v1 · doi: 10.48550/arxiv.1204.6048 · pith_short_12: 7MMKCNLYHSL6 · pith_short_16: 7MMKCNLYHSL6CAHF · pith_short_8: 7MMKCNLY

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/7MMKCNLYHSL6CAHFGASWOH56D3 \
  | 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: fb18a135783c97e100e53025671fbe1efca70238da4ee6e0e87a892a941184af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3aeaf624dc1463756f129d626b2e0360974512fd9a40c743b6e450e17001854d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-04-26T20:08:19Z",
    "title_canon_sha256": "526efdf09955b5339a3cec8e8c978ed76b1beeec17969a160d9da26a444f8405"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.6048",
    "kind": "arxiv",
    "version": 1
  }
}