Pith Number

pith:DDBAESOR

pith:2012:DDBAESORPVKYSOF5CZLZIS5LAS

not attested not anchored not stored refs pending

Intranight optical variability of \gamma-ray loud Narrow Line Seyfert 1 galaxies

Brajesh Kumar, Brijesh Kumar, C. S. Stalin, R. K. S. Yadav, S. B. Pandey, Vaidehi S. Paliya, V. K. Bhatt

arxiv:1210.4387 v1 · 2012-10-16 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DDBAESORPVKYSOF5CZLZIS5LAS}

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	2026-05-18T01:53:54.384620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18c20249d17d558938bd1657944bab0482a4166df83c0244798b4cb3b3d483ce

Aliases

arxiv: 1210.4387 · arxiv_version: 1210.4387v1 · doi: 10.48550/arxiv.1210.4387 · pith_short_12: DDBAESORPVKY · pith_short_16: DDBAESORPVKYSOF5 · pith_short_8: DDBAESOR

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/DDBAESORPVKYSOF5CZLZIS5LAS \
  | 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: 18c20249d17d558938bd1657944bab0482a4166df83c0244798b4cb3b3d483ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e54f7c0310ac9c74d73c63c895704c4498c84bd4f401a7bb24ec1e4bd74f045",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-10-16T12:47:43Z",
    "title_canon_sha256": "a292cb4178f6f6b0df76f0e6602fbd8e5627ebcc99738ef48089c1cddff04951"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.4387",
    "kind": "arxiv",
    "version": 1
  }
}