Pith Number

pith:U7KIL7OB

pith:2017:U7KIL7OB6ZBUKX3PS3GWT4JBTN

not attested not anchored not stored refs pending

The Mg I b triplet and the 4571 {\AA} line as diagnostics of stellar chromospheric activity

C. Sasso, L. Terranegra, M. T. Gomez, V. Andretta

arxiv:1706.04421 v1 · 2017-06-14 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U7KIL7OB6ZBUKX3PS3GWT4JBTN}

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	2026-05-18T00:38:51.155233Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7d485fdc1f643455f6f96cd69f1219b65acaf13a725083789b65b3af6c43b9c

Aliases

arxiv: 1706.04421 · arxiv_version: 1706.04421v1 · doi: 10.48550/arxiv.1706.04421 · pith_short_12: U7KIL7OB6ZBU · pith_short_16: U7KIL7OB6ZBUKX3P · pith_short_8: U7KIL7OB

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/U7KIL7OB6ZBUKX3PS3GWT4JBTN \
  | 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: a7d485fdc1f643455f6f96cd69f1219b65acaf13a725083789b65b3af6c43b9c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a2622527e2e3985f22474226ce344896f7d851763f6c7b3a1dff0d4b330b9eb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-06-14T11:55:14Z",
    "title_canon_sha256": "6bd40ead0a7ec6c576b160dc6c8ea7d971ab5da051132302b43f8abc8a33ac47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.04421",
    "kind": "arxiv",
    "version": 1
  }
}