Pith Number

pith:HZQJTKU5

pith:2004:HZQJTKU5F5WCNEJSJBHS35VVBL

not attested not anchored not stored refs pending

The X-Ray Binary X2127+119 in M15: Evidence for a Very-Low-Mass, Stripped-Giant Companion

((1) Keele University, 2), (2) Oxford University, 3), (3) University of Southampton, (4) Space Telescope Science Institute, 5), (5) University of Exeter, 6), (6) Instituto de Astrofsica de Canarias), C. Hellier (1), E. Mediavilla (6), L. van Zyl (1, P.A. Charles (2, S. Arribas (4, T. Naylor (1

arxiv:astro-ph/0401569 v1 · 2004-01-27 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HZQJTKU5F5WCNEJSJBHS35VVBL}

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	2026-07-04T16:42:55.645621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e6099aa9d2f6c269132484f2df6b50ae2827f91ba431aacdc2e9cd2e161f84c

Aliases

arxiv: astro-ph/0401569 · arxiv_version: astro-ph/0401569v1 · doi: 10.48550/arxiv.astro-ph/0401569 · pith_short_12: HZQJTKU5F5WC · pith_short_16: HZQJTKU5F5WCNEJS · pith_short_8: HZQJTKU5

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/HZQJTKU5F5WCNEJSJBHS35VVBL \
  | 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: 3e6099aa9d2f6c269132484f2df6b50ae2827f91ba431aacdc2e9cd2e161f84c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa8d6aa30c312f42e10b6b105a6a8887be2751cd93d14d2a1569bfa394b54c0b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-01-27T15:11:55Z",
    "title_canon_sha256": "ba1398fde033b47a274a5ce3118181717584beea01f7b7f405b8a643810c0f0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0401569",
    "kind": "arxiv",
    "version": 1
  }
}