Pith Number

pith:JS3MJDY3

pith:2019:JS3MJDY34V5WTUVCMKEZS4ATAT

not attested not anchored not stored refs pending

Swift monitoring of M51: A 38-day super-orbital period for the pulsar ULX7 and a new transient ULX

Daniel Stern, Dominic J. Walton, Felix F\"urst, Fiona A. Harrison, GianLuca Israel, Hannah Earnshaw, Marianne Heida, Murray Brightman, Sean Pike

arxiv:1912.04431 v1 · 2019-12-10 · 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{JS3MJDY34V5WTUVCMKEZS4ATAT}

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.

Cited by

1 paper in Pith

Transient and Variable Ultra-luminous X-ray Sources in NGC 4552

Receipt and verification

First computed	2026-07-05T01:08:50.721497Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4cb6c48f1be57b69d2a2628999701304d9f16ecbf93a5ab1de1b3ec5b297e891

Aliases

arxiv: 1912.04431 · arxiv_version: 1912.04431v1 · doi: 10.48550/arxiv.1912.04431 · pith_short_12: JS3MJDY34V5W · pith_short_16: JS3MJDY34V5WTUVC · pith_short_8: JS3MJDY3

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/JS3MJDY34V5WTUVCMKEZS4ATAT \
  | 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: 4cb6c48f1be57b69d2a2628999701304d9f16ecbf93a5ab1de1b3ec5b297e891

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52a84a092b735107f0b845b59b7dc1a64ba7db171cf7f2f9717ce65f19b93da9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-12-10T00:44:41Z",
    "title_canon_sha256": "9e615d9d7be4e8d72c8e550cb99eb350cad917c2b36ff77d413395e8f65dead3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.04431",
    "kind": "arxiv",
    "version": 1
  }
}