Pith Number

pith:235Z3TCK

pith:2000:235Z3TCKDVW5TURUM7FAM4FQ7D

not attested not anchored not stored refs pending

Optical Spectroscopy of GX339-4 during the High-Soft and Low-Hard States II: Line Ionisation and Emission Region

Helen M. Johnston, Kinwah Wu, Richard W. Hunstead, Roberto Soria

arxiv:astro-ph/0008016 v1 · 2000-08-01 · 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{235Z3TCKDVW5TURUM7FAM4FQ7D}

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	2026-07-04T16:16:58.837092Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6fb9dcc4a1d6dd9d23467ca0670b0f8dbee4c30bfc86daa79f230acaa48738a

Aliases

arxiv: astro-ph/0008016 · arxiv_version: astro-ph/0008016v1 · doi: 10.48550/arxiv.astro-ph/0008016 · pith_short_12: 235Z3TCKDVW5 · pith_short_16: 235Z3TCKDVW5TURU · pith_short_8: 235Z3TCK

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/235Z3TCKDVW5TURUM7FAM4FQ7D \
  | 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: d6fb9dcc4a1d6dd9d23467ca0670b0f8dbee4c30bfc86daa79f230acaa48738a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fb7edad83a8a08a7c355f2fdf596b49850ebe044d33c7266ff67bc09992d73f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-08-01T11:38:04Z",
    "title_canon_sha256": "46fb00e7110eca3f814b99c5d822b89fceedcba7d8ced1e1c9113f6a9ef7a0f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0008016",
    "kind": "arxiv",
    "version": 1
  }
}