Pith Number

pith:SFYZVPDX

pith:2018:SFYZVPDXT3SLNKGATQAUR437AB

not attested not anchored not stored refs pending

A CEMP-no star in the ultra-faint dwarf galaxy Pisces II

Elisabetta Caffau, Fran\c{c}ois Spite, Monique Spite, Patrick Fran\c{c}ois, Piercarlo Bonifacio, Stefania Salvadori

arxiv:1807.01542 v1 · 2018-07-04 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SFYZVPDXT3SLNKGATQAUR437AB}

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	2026-05-18T00:04:55.642527Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91719abc779ee4b6a8c09c0148f37f00683373e722baa41229297cfac7e13304

Aliases

arxiv: 1807.01542 · arxiv_version: 1807.01542v1 · doi: 10.48550/arxiv.1807.01542 · pith_short_12: SFYZVPDXT3SL · pith_short_16: SFYZVPDXT3SLNKGA · pith_short_8: SFYZVPDX

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/SFYZVPDXT3SLNKGATQAUR437AB \
  | 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: 91719abc779ee4b6a8c09c0148f37f00683373e722baa41229297cfac7e13304

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf86cf138aa3fca5308830f66952df3ed875015b79d943d8d97cc462da7e76a3",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-07-04T12:35:43Z",
    "title_canon_sha256": "e193b5b6f231572841b7e91a9c2e368da2c4a6e1b083a4916c2f2574efd05964"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.01542",
    "kind": "arxiv",
    "version": 1
  }
}