Pith Number

pith:SCY6FOZI

pith:2009:SCY6FOZIUZL3OWN2UDI6UYKZWZ

not attested not anchored not stored refs pending

New constraints on the chemical evolution of the dwarf spheroidal galaxy LeoI from VLT spectroscopy

E. V. Held, I. Saviane, L. Rizzi, M. Gullieuszik

arxiv:0904.2718 v1 · 2009-04-17 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SCY6FOZIUZL3OWN2UDI6UYKZWZ}

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	2026-05-18T02:13:59.459306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90b1e2bb28a657b759baa0d1ea6159b66d75a570a5a13b4ad52b96831472183e

Aliases

arxiv: 0904.2718 · arxiv_version: 0904.2718v1 · doi: 10.48550/arxiv.0904.2718 · pith_short_12: SCY6FOZIUZL3 · pith_short_16: SCY6FOZIUZL3OWN2 · pith_short_8: SCY6FOZI

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/SCY6FOZIUZL3OWN2UDI6UYKZWZ \
  | 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: 90b1e2bb28a657b759baa0d1ea6159b66d75a570a5a13b4ad52b96831472183e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "299eb05166357a01488876733becc91ad3caad73ef503fcb3954e7181a63db25",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-04-17T15:00:10Z",
    "title_canon_sha256": "278fe638a1b7462e7b8d5871a24f42679a0faaf4c9c08c3678be4bcb54b384c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2718",
    "kind": "arxiv",
    "version": 1
  }
}