Pith Number

pith:PDXPGLPY

pith:2025:PDXPGLPYBZSPDMBJWGH5574DHC

not attested not anchored not stored refs pending

Complex spectral variability and hints of a luminous companion in the Be star + black hole binary candidate ALS 8814

Hugues Sana, Kareem El-Badry, Matthias Fabry, Rhys Seeburger, Tomer Shenar

arxiv:2509.01545 v1 · 2025-09-01 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PDXPGLPYBZSPDMBJWGH5574DHC}

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	2026-07-05T12:04:18.126696Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78eef32df80e64f1b029b18fdeff83389775c35db97d3043869549c5187e69dc

Aliases

arxiv: 2509.01545 · arxiv_version: 2509.01545v1 · doi: 10.48550/arxiv.2509.01545 · pith_short_12: PDXPGLPYBZSP · pith_short_16: PDXPGLPYBZSPDMBJ · pith_short_8: PDXPGLPY

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/PDXPGLPYBZSPDMBJWGH5574DHC \
  | 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: 78eef32df80e64f1b029b18fdeff83389775c35db97d3043869549c5187e69dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f121633e59f014075eea3e66c2d36c907903e87dd12712e63d3a9269c24bded",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-09-01T15:19:49Z",
    "title_canon_sha256": "2ccc77c43b597b8221a89f950f4a363243f5ac2994a2488c23645b79a48a0d9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.01545",
    "kind": "arxiv",
    "version": 1
  }
}