Pith Number

pith:VPYDKE3P

pith:2010:VPYDKE3PPM2AZHA5UEEKNOJQN2

not attested not anchored not stored refs pending

Variability of the H-beta line profiles as an indicator of orbiting bright spots in accretion disks of quasars: a case study of 3C 390.3

A. I. Shapovalova, L. \v{C}. Popovi\'c, M. Stalevski, P. Jovanovi\'c

arxiv:1005.5039 v1 · 2010-05-27 · astro-ph.GA · 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{VPYDKE3PPM2AZHA5UEEKNOJQN2}

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	2026-05-18T02:07:07.306121Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abf035136f7b340c9c1da108a6b9306e94b5a1c78194ae7a6354add3b215f5f9

Aliases

arxiv: 1005.5039 · arxiv_version: 1005.5039v1 · doi: 10.48550/arxiv.1005.5039 · pith_short_12: VPYDKE3PPM2A · pith_short_16: VPYDKE3PPM2AZHA5 · pith_short_8: VPYDKE3P

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/VPYDKE3PPM2AZHA5UEEKNOJQN2 \
  | 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: abf035136f7b340c9c1da108a6b9306e94b5a1c78194ae7a6354add3b215f5f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eda891a80c258338adf3974608523ac436728aab392f60b3a7a8c8a978b46a91",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-05-27T11:56:27Z",
    "title_canon_sha256": "0daa64b89eef366d68d71a5b4decf0df8d11060c28f3e6476a26690c112b0fd2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.5039",
    "kind": "arxiv",
    "version": 1
  }
}