Pith Number

pith:JMGPVYXM

pith:2026:JMGPVYXMXOIYYKIPWOCQ2TVTWO

not attested not anchored not stored refs pending

Optical Super-orbital Modulation of SMC X-1: Disk Precession and a Revised Pulsar Mass

Masafumi Niwano, Michael Fausnaugh, Nobuyuki Kawai

arxiv:2605.21294 v1 · 2026-05-20 · 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{JMGPVYXMXOIYYKIPWOCQ2TVTWO}

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	2026-05-21T02:05:27.517720Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b0cfae2ecbb918c290fb3850d4eb3b3a23ef5155c3fd8fa5400eb77f7fb643e

Aliases

arxiv: 2605.21294 · arxiv_version: 2605.21294v1 · doi: 10.48550/arxiv.2605.21294 · pith_short_12: JMGPVYXMXOIY · pith_short_16: JMGPVYXMXOIYYKIP · pith_short_8: JMGPVYXM

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/JMGPVYXMXOIYYKIPWOCQ2TVTWO \
  | 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: 4b0cfae2ecbb918c290fb3850d4eb3b3a23ef5155c3fd8fa5400eb77f7fb643e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f193d36f95b849a25932f1fdcdd4fc9976d0d77a032dd0f0a0b83f06bedb7d0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-05-20T15:25:30Z",
    "title_canon_sha256": "7255c096c8fc7702a8c05a785d6f5cdfcb9ba57646c5a6ec2060cc2d3c538027"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21294",
    "kind": "arxiv",
    "version": 1
  }
}