Pith Number

pith:3IVJ6I63

pith:2016:3IVJ6I63LLEAK3LEE4B32VLBMS

not attested not anchored not stored refs pending

Stellar populations and Star Formation History of the Metal-Poor Dwarf Galaxy DDO 68

A. Aloisi, A. J. Grocholski, B. James, E. Sacchi, F. Annibali, M. Cignoni, M. Tosi, R. P. van der Marel, T. Sohn

arxiv:1604.06239 v2 · 2016-04-21 · 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{3IVJ6I63LLEAK3LEE4B32VLBMS}

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	2026-05-18T01:02:44.464786Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da2a9f23db5ac8056d642703bd55616493eb9fa40f1c8bcf7138e9930aab9ec6

Aliases

arxiv: 1604.06239 · arxiv_version: 1604.06239v2 · doi: 10.48550/arxiv.1604.06239 · pith_short_12: 3IVJ6I63LLEA · pith_short_16: 3IVJ6I63LLEAK3LE · pith_short_8: 3IVJ6I63

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/3IVJ6I63LLEAK3LEE4B32VLBMS \
  | 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: da2a9f23db5ac8056d642703bd55616493eb9fa40f1c8bcf7138e9930aab9ec6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95cf4b5ceb0a89fe2427e5e5c32fcc48f2d4703249ab849d27c2e0f89effffae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-04-21T10:11:17Z",
    "title_canon_sha256": "5d9ad6133efee5d4a131a510d7689decadb3fcc6cb5f2af393eb1f918e5125df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.06239",
    "kind": "arxiv",
    "version": 2
  }
}