Pith Number

pith:RSPD3BAJ

pith:2002:RSPD3BAJ4QGG26RCEYRPAR5OMN

not attested not anchored not stored refs pending

Facility class Rayleigh beacon AO system for the 4.2m William Herschel Telescope

E. Emsellem, G. Moretto, G. Talbot, J.H. Knapen, P. Clark, R.A. Humphreys, R.G. Bingham, R.G.M. Rutten, R.M. Myers, R.W. Wilson, S.L. Morris, T. Gregory

arxiv:astro-ph/0208151 v1 · 2002-08-07 · 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{RSPD3BAJ4QGG26RCEYRPAR5OMN}

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	2026-07-04T16:30:36.519539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c9e3d8409e40c6d7a222622f047ae63597432b1ee562aec0e19c95c42a29f3c

Aliases

arxiv: astro-ph/0208151 · arxiv_version: astro-ph/0208151v1 · doi: 10.48550/arxiv.astro-ph/0208151 · pith_short_12: RSPD3BAJ4QGG · pith_short_16: RSPD3BAJ4QGG26RC · pith_short_8: RSPD3BAJ

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/RSPD3BAJ4QGG26RCEYRPAR5OMN \
  | 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: 8c9e3d8409e40c6d7a222622f047ae63597432b1ee562aec0e19c95c42a29f3c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "508254652614293377c09345c86e530cc4706fe37c33b375ea6b7fb28f228c9d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-08-07T11:59:05Z",
    "title_canon_sha256": "74d9076b87ade5e5416acf0a7f2d48f282e6f5987ade86d9c5814ce67d0fc4ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0208151",
    "kind": "arxiv",
    "version": 1
  }
}