Pith Number

pith:F25CQW2G

pith:2019:F25CQW2GE3TVIUHJU6LIAGEVRG

not attested not anchored not stored refs pending

Variability of Ha emission in young stellar objects in the cluster IC 348

Elena H. Nikoghosyan, N. M. Azatyan

arxiv:1908.07987 v2 · 2019-08-21 · 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{F25CQW2GE3TVIUHJU6LIAGEVRG}

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	2026-07-05T00:19:37.608294Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2eba285b4626e75450e9a79680189589bc167402f26637d6386a2b5dee19239a

Aliases

arxiv: 1908.07987 · arxiv_version: 1908.07987v2 · doi: 10.48550/arxiv.1908.07987 · pith_short_12: F25CQW2GE3TV · pith_short_16: F25CQW2GE3TVIUHJ · pith_short_8: F25CQW2G

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/F25CQW2GE3TVIUHJU6LIAGEVRG \
  | 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: 2eba285b4626e75450e9a79680189589bc167402f26637d6386a2b5dee19239a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50bdea4884e794101561174bf4d5324e5340519065791c695b6e456584609fbe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-08-21T17:03:31Z",
    "title_canon_sha256": "ce5e251b06c4474446d687e7c850f065ea68e27efa8fb9164b96768b22a8c2e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.07987",
    "kind": "arxiv",
    "version": 2
  }
}