Pith Number

pith:LA67XAQ6

pith:2015:LA67XAQ6PKHUESBTQGIXAW7RAH

not attested not anchored not stored refs pending

Observed Variability of the Solar Mg II h Spectral Line

Bart De Pontieu, Donald Schmit, Jorrit Leenaarts, Mats Carlsson, Paul Bryans, Scott McIntosh

arxiv:1508.04714 v1 · 2015-08-19 · 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{LA67XAQ6PKHUESBTQGIXAW7RAH}

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	2026-05-18T01:30:57.820277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

583dfb821e7a8f4248338191705bf101d30ee6e241ab84c1ced5bca591f09788

Aliases

arxiv: 1508.04714 · arxiv_version: 1508.04714v1 · doi: 10.48550/arxiv.1508.04714 · pith_short_12: LA67XAQ6PKHU · pith_short_16: LA67XAQ6PKHUESBT · pith_short_8: LA67XAQ6

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/LA67XAQ6PKHUESBTQGIXAW7RAH \
  | 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: 583dfb821e7a8f4248338191705bf101d30ee6e241ab84c1ced5bca591f09788

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e56c66cf2225fc212dd8a320b7aa249da25ee5577e42463fd14acc307273188",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-08-19T17:38:09Z",
    "title_canon_sha256": "efcba876d6f874f7bb620a24a719c5d89576f4d8e13db5de8ee5e078a4afcdc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.04714",
    "kind": "arxiv",
    "version": 1
  }
}