Pith Number

pith:JUOP4QCI

pith:2017:JUOP4QCITDHM3DJNJR5CP5XEJ4

not attested not anchored not stored refs pending

WHT follow-up observations of extremely metal-poor stars identified from SDSS and LAMOST

C. Allende Prieto, D. S. Aguado, J. I. Gonz\'alez Hern\'andez, R. Rebolo

arxiv:1705.09233 v2 · 2017-05-25 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JUOP4QCITDHM3DJNJR5CP5XEJ4}

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	2026-05-18T00:35:58.745922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d1cfe404898cecd8d2d4c7a27f6e44f0f03989b91c133e9c96ce00dbc1131cc

Aliases

arxiv: 1705.09233 · arxiv_version: 1705.09233v2 · doi: 10.48550/arxiv.1705.09233 · pith_short_12: JUOP4QCITDHM · pith_short_16: JUOP4QCITDHM3DJN · pith_short_8: JUOP4QCI

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/JUOP4QCITDHM3DJNJR5CP5XEJ4 \
  | 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: 4d1cfe404898cecd8d2d4c7a27f6e44f0f03989b91c133e9c96ce00dbc1131cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e37a99ea2d2478706139f0fbcc15a982cb89dbc8a9249a2fbf46cec7b2e46761",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-05-25T15:41:59Z",
    "title_canon_sha256": "d3d38c63fa1bc30467c1d33d2034918b748e3df1f4aaedbeda130f0d1225a625"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.09233",
    "kind": "arxiv",
    "version": 2
  }
}