pith. the verified trust layer for science. sign in
Pith Number

pith:PI3DU6LN

pith:2018:PI3DU6LNPZCJWZENTIAZVV5XIX
not attested not anchored not stored refs pending

Quiet-Sun and Coronal Hole in \ion{Mg}{2}~k line as observed by IRIS

Durgesh Tripathi, Hardi Peter, Pradeep Kayshap, Sami K. Solanki

arxiv:1807.03494 v2 · 2018-07-10 · astro-ph.SR

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{PI3DU6LNPZCJWZENTIAZVV5XIX}

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 2026-05-18T00:00:18.936362Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

7a363a796d7e449b648d9a019ad7b745c398c42dc64a7fbab0e632037d44cd5a

Aliases

arxiv: 1807.03494 · arxiv_version: 1807.03494v2 · doi: 10.48550/arxiv.1807.03494 · pith_short_12: PI3DU6LNPZCJ · pith_short_16: PI3DU6LNPZCJWZEN · pith_short_8: PI3DU6LN
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/PI3DU6LNPZCJWZENTIAZVV5XIX \
  | 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: 7a363a796d7e449b648d9a019ad7b745c398c42dc64a7fbab0e632037d44cd5a
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "1b6a3e879c9e96744cdd831fbae4a08715bdef380575b02db30a4704d434f43e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-07-10T06:29:14Z",
    "title_canon_sha256": "77b441c3d38876345cbae48de4585bb407f4b7c4684621559c886884d0117c26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.03494",
    "kind": "arxiv",
    "version": 2
  }
}