Pith Number

pith:JOAHDNAD

pith:2018:JOAHDNADHWVFWP34R2JF4QQT4C

not attested not anchored not stored refs pending

Time resolved spectroscopic observations of an M-dwarf flare star EV Lacertae during a flare

Daisaku Nogami, Hiroyuki Maehara, Kai Ikuta, Kazunari Shibata, Kosuke Namekata, Satoshi Honda, Shota Notsu, Yuta Notsu

arxiv:1804.03771 v2 · 2018-04-11 · 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{JOAHDNADHWVFWP34R2JF4QQT4C}

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	2026-05-18T00:14:45.897603Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b8071b4033daa5b3f7c8e925e4213e0a987a34df48f32d22c946af0dbad1ac6

Aliases

arxiv: 1804.03771 · arxiv_version: 1804.03771v2 · doi: 10.48550/arxiv.1804.03771 · pith_short_12: JOAHDNADHWVF · pith_short_16: JOAHDNADHWVFWP34 · pith_short_8: JOAHDNAD

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/JOAHDNADHWVFWP34R2JF4QQT4C \
  | 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: 4b8071b4033daa5b3f7c8e925e4213e0a987a34df48f32d22c946af0dbad1ac6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dfecd56b62dd91a047507b794799ff17ed36477db73c42075a6a811bef0cda88",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-04-11T01:12:17Z",
    "title_canon_sha256": "d7814b66f6cc13343b11f0dc60c6c74e31da9cb88de42d8808295180899070bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.03771",
    "kind": "arxiv",
    "version": 2
  }
}