Pith Number

pith:PSE2JKZT

pith:2014:PSE2JKZT646MDXSNKAAY4CIHPC

not attested not anchored not stored refs pending

Statistical Properties of Multi-epoch Spectral Variability of SDSS Stripe82 Quasars

2, (2) Kavli Institute for the Physics, 3), (3) Research Center for the Early Universe, (4) Department of Physics, (5) Institute of Space, (6) Center of Astro Engineering, Astronautical Science, Department of Electrical Engineering, Hiroaki Sameshima (5), Information Science, Japan Aerospace Exploration Agency, Mamoru Doi (1, Mathematics of the Universe (WPI), Mitsuru Kokubo (1), Pontificia Universidad Catolica de Chile), School of Science, Shintaro Koshida (6) ((1) Institute of Astronomy, Takeo Minezaki (1), The University of Tokyo, Todai Institutes for Advanced Study, Tomoki Morokuma (1), Toshihiro Kawaguchi (4), Yamaguchi University

arxiv:1401.5074 v2 · 2014-01-20 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PSE2JKZT646MDXSNKAAY4CIHPC}

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	2026-05-18T02:59:08.302751Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c89a4ab33f73cc1de4d50018e090778bcb83c984938d14ca64f92e612a8c6a2

Aliases

arxiv: 1401.5074 · arxiv_version: 1401.5074v2 · doi: 10.48550/arxiv.1401.5074 · pith_short_12: PSE2JKZT646M · pith_short_16: PSE2JKZT646MDXSN · pith_short_8: PSE2JKZT

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/PSE2JKZT646MDXSNKAAY4CIHPC \
  | 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: 7c89a4ab33f73cc1de4d50018e090778bcb83c984938d14ca64f92e612a8c6a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8dc15af3d7561af5631e008c02e7953ac5d052b6a314e2c85cba3f8a03af9724",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2014-01-20T21:00:21Z",
    "title_canon_sha256": "6ac8436ca81aa828e3d707f2ddf49fc2d65b571af2be94f7fb73cdd1dccc2fe6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.5074",
    "kind": "arxiv",
    "version": 2
  }
}