Pith Number

pith:C3XQAUQI

pith:1998:C3XQAUQIQPV7N3RGAHDRGA2JIA

not attested not anchored not stored refs pending

Optical Identification of ROSAT sources in M 67: activity in an old cluster

Garching), L. Pasquini (ESO, T. Belloni (University of Amsterdam)

arxiv:astro-ph/9805364 v1 · 1998-05-29 · 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{C3XQAUQIQPV7N3RGAHDRGA2JIA}

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	2026-05-18T04:21:40.185424Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16ef00520883ebf6ee2601c7130349402e33324dcf2b3e128275c210828ff597

Aliases

arxiv: astro-ph/9805364 · arxiv_version: astro-ph/9805364v1 · doi: 10.48550/arxiv.astro-ph/9805364 · pith_short_12: C3XQAUQIQPV7 · pith_short_16: C3XQAUQIQPV7N3RG · pith_short_8: C3XQAUQI

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/C3XQAUQIQPV7N3RGAHDRGA2JIA \
  | 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: 16ef00520883ebf6ee2601c7130349402e33324dcf2b3e128275c210828ff597

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2f7901bcb54634230a878dd6c9ff2536a9abf570a625ad0f9840eb5ed5f6b57",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-05-29T12:38:45Z",
    "title_canon_sha256": "ed2248e2b9cddfd3e633b30f2d82beea62081214d5f6da05b337384ab67b06be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9805364",
    "kind": "arxiv",
    "version": 1
  }
}