pith. sign in
Pith Number

pith:D4ASQZOM

pith:2010:D4ASQZOMP4RBAGATVMINNUA46F
not attested not anchored not stored refs pending

Ultraviolet and X-ray Variability of the Seyfert 1.5 Galaxy Markarian 817

Brian Keeney, Charles Danforth, Cynthia Froning, Donald P. Schneider, Jennifer Scott, J. Michael Shull, Lisa M. Winter, Nahum Arav, Ranjan Vasudevan, Richard Mushotzky, Steve Penton, W. N. Brandt

arxiv:1012.0592 v1 · 2010-12-02 · astro-ph.HE

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{D4ASQZOMP4RBAGATVMINNUA46F}

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 2026-05-18T02:04:35.710626Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

1f012865cc7f22101813ab10d6d01cf1666ba3145538b497efa1ebade2a29dd5

Aliases

arxiv: 1012.0592 · arxiv_version: 1012.0592v1 · doi: 10.48550/arxiv.1012.0592 · pith_short_12: D4ASQZOMP4RB · pith_short_16: D4ASQZOMP4RBAGAT · pith_short_8: D4ASQZOM
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/D4ASQZOMP4RBAGATVMINNUA46F \
  | 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: 1f012865cc7f22101813ab10d6d01cf1666ba3145538b497efa1ebade2a29dd5
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "3c08d70cbdfbf367df1848dd12acc4bfa11466b41dff528f4edfc086be454343",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-12-02T22:19:07Z",
    "title_canon_sha256": "cdff135068f4308c8a753017a7487bc0d69b385f7c7d6df2bf9188814a0f7d97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.0592",
    "kind": "arxiv",
    "version": 1
  }
}