Pith Number

pith:4NUOGZZJ

pith:2019:4NUOGZZJY75DTMVEVEA5MJMHTR

not attested not anchored not stored refs pending

Discovery and Identification of MAXI J1621-501 as a Type I X-ray Burster with a Super-Orbital Period

Alexander J. van der Horst, Arash Bahramian, Charles Hailey, Chryssa Kouveliotou, Daniela Huppenkothen, Daniel Stern, Deepto Chakrabarty, Dieter H. Hartmann, Enrico Bozzo, Erin Kara, Ersin Gogus, Fiona A. Harrison, George A. Younes, Hitoshi Negoro, James Miller-Jones, Jamie Kennea, John A. Tomsick, Jonathan Granot, Justin D. Linford, Katsuhiro Murata, Lex Kaper, Matthew G. Baring, Nicholas M. Gorgone, Paz Beniamini, Peter Bult, Ralph A. M. J. Wijers, Simona Mazzola, Sylvain Guiriec, Wataru Iwakiri

arxiv:1908.03590 v2 · 2019-08-09 · 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{4NUOGZZJY75DTMVEVEA5MJMHTR}

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	2026-07-05T00:17:10.241651Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e368e36729c7fa39b2a4a901d625879c699be7a880a8f861348ed1425e85698e

Aliases

arxiv: 1908.03590 · arxiv_version: 1908.03590v2 · doi: 10.48550/arxiv.1908.03590 · pith_short_12: 4NUOGZZJY75D · pith_short_16: 4NUOGZZJY75DTMVE · pith_short_8: 4NUOGZZJ

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/4NUOGZZJY75DTMVEVEA5MJMHTR \
  | 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: e368e36729c7fa39b2a4a901d625879c699be7a880a8f861348ed1425e85698e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44caf40f67547303930683ac20775c68491f68166733bfeea644536f2391945e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-08-09T18:29:28Z",
    "title_canon_sha256": "5cd313fe6174375b0cac877cbe70e65e91993972b29561a969a15d5357ae3b1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03590",
    "kind": "arxiv",
    "version": 2
  }
}