Pith Number

pith:Q45USVF7

pith:2012:Q45USVF7L5OGDQJ4PODWEQS6F4

not attested not anchored not stored refs pending

Population gradients and photometric metallicities in early- and transition-type dwarf galaxies: Clues from the Sculptor group

A. Koch, E. Grebel, G. S. Da Costa, H. Jerjen, M. Rejkuba, S. Lianou

arxiv:1211.3170 v2 · 2012-11-14 · astro-ph.CO · 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{Q45USVF7L5OGDQJ4PODWEQS6F4}

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	2026-05-18T03:25:58.974189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

873b4954bf5f5c61c13c7b8762425e2f25d4066286e6848d3cfeea667c1acb2e

Aliases

arxiv: 1211.3170 · arxiv_version: 1211.3170v2 · doi: 10.48550/arxiv.1211.3170 · pith_short_12: Q45USVF7L5OG · pith_short_16: Q45USVF7L5OGDQJ4 · pith_short_8: Q45USVF7

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/Q45USVF7L5OGDQJ4PODWEQS6F4 \
  | 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: 873b4954bf5f5c61c13c7b8762425e2f25d4066286e6848d3cfeea667c1acb2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "570df6236510829134ef46f53728bc1f4fa06ced5527a7451e3c25b9347ee13e",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-11-14T00:16:12Z",
    "title_canon_sha256": "80607ba74ee7e8838e8e71ef0189cc3e9fee3a62a6abe8a9a2b683b54d1a93ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.3170",
    "kind": "arxiv",
    "version": 2
  }
}