Pith Number

pith:SHDABQHA

pith:1999:SHDABQHAVFVI4WJS6KKLSAY7A5

not attested not anchored not stored refs pending

X-ray Spectra of the RIXOS source sample

D. Wonnacott, E. Romero-Colmenero, F.J. Carrera, G. Hasinger, H. Andernach, J. Burgos-Martin, J. I. Gonzalez-Serrano, J. P. D. Mittaz, K. O. Mason, R. Bower, R. McMahon

arxiv:astro-ph/9905188 v1 · 1999-05-14 · 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{SHDABQHAVFVI4WJS6KKLSAY7A5}

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	2026-07-04T16:11:13.007455Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91c600c0e0a96a8e5932f294b9031f075de2eae6aa340801e3687ccf33e1607c

Aliases

arxiv: astro-ph/9905188 · arxiv_version: astro-ph/9905188v1 · doi: 10.48550/arxiv.astro-ph/9905188 · pith_short_12: SHDABQHAVFVI · pith_short_16: SHDABQHAVFVI4WJS · pith_short_8: SHDABQHA

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/SHDABQHAVFVI4WJS6KKLSAY7A5 \
  | 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: 91c600c0e0a96a8e5932f294b9031f075de2eae6aa340801e3687ccf33e1607c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "707574c542068b4194ff32dd0bf35db2e3913292f3f30d4a5ec9122195991018",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-05-14T18:16:20Z",
    "title_canon_sha256": "7c8b0e3d094928e79d89abc4fc038bc500cdadb7d8261394cc87f95616bc69b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9905188",
    "kind": "arxiv",
    "version": 1
  }
}