Pith Number

pith:BQ26XDK2

pith:2022:BQ26XDK2VIFJXXEPLHMDOAMEGI

not attested not anchored not stored refs pending

Be, V and Cu in the halo star CS 31082-001 from near-UV spectroscopy

2 M. Spite, A. Fria\c{c}a, B. Barbuy, B. V. Castilho, C. J. Evans, F. Spite, H. Ernandes, V. Hill

arxiv:2202.04450 v1 · 2022-02-09 · astro-ph.SR · astro-ph.GA · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BQ26XDK2VIFJXXEPLHMDOAMEGI}

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	2026-07-05T03:55:37.645696Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c35eb8d5aaa0a9bdc8f59d8370184321e28e1426375c3332196b57eefddac1a

Aliases

arxiv: 2202.04450 · arxiv_version: 2202.04450v1 · doi: 10.48550/arxiv.2202.04450 · pith_short_12: BQ26XDK2VIFJ · pith_short_16: BQ26XDK2VIFJXXEP · pith_short_8: BQ26XDK2

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/BQ26XDK2VIFJXXEPLHMDOAMEGI \
  | 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: 0c35eb8d5aaa0a9bdc8f59d8370184321e28e1426375c3332196b57eefddac1a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1387384bbbf103f6664355f2149c0e0cdbed4e4624f0fc8e213b93e3099ece2a",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2022-02-09T13:25:18Z",
    "title_canon_sha256": "a675046fcd4a05210de33c8f449bf3f036ab5d953becf29532452e48159468a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.04450",
    "kind": "arxiv",
    "version": 1
  }
}