Pith Number

pith:Y6UPAXMX

pith:2014:Y6UPAXMXLANFZ5S7FESFFFT4DX

not attested not anchored not stored refs pending

A pilot study using deep infrared imaging to constrain the star formation history of the XUV stellar populations in NGC 4625

Benjamin D. Johnson, Fabio Bresolin, Giovanni Fazio, M. L. N. Ashby, Robert C. Kennicutt, Stephanie J. Bush

arxiv:1409.0666 v1 · 2014-09-02 · 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{Y6UPAXMXLANFZ5S7FESFFFT4DX}

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	2026-05-18T01:42:10.855935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7a8f05d97581a5cf65f292452967c1dd3abd90c6a4d8256324c2dc6be19b256

Aliases

arxiv: 1409.0666 · arxiv_version: 1409.0666v1 · doi: 10.48550/arxiv.1409.0666 · pith_short_12: Y6UPAXMXLANF · pith_short_16: Y6UPAXMXLANFZ5S7 · pith_short_8: Y6UPAXMX

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/Y6UPAXMXLANFZ5S7FESFFFT4DX \
  | 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: c7a8f05d97581a5cf65f292452967c1dd3abd90c6a4d8256324c2dc6be19b256

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1301ffd68af87c5cc2c23c7bad29a040f60ba1a4e17afcc8ac3bd0d2b7317d79",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-09-02T11:18:50Z",
    "title_canon_sha256": "dd6ec499607f0450b790516022cbdcecb9e08f7b0a373a7f8c3b50dcef3fa7c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.0666",
    "kind": "arxiv",
    "version": 1
  }
}