Pith Number

pith:26ZIFQ6Z

pith:2016:26ZIFQ6ZSFPPIOV7QPC25OPEWE

not attested not anchored not stored refs pending

The tight subgiant branch of the intermediate-age star cluster NGC 411 implies a single-aged stellar population

Chaoli Zhang, Chengyuan Li, Florian Niederhofer, Licai Deng, Nathan Bastian, Richard de Grijs

arxiv:1606.05394 v2 · 2016-06-17 · 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{26ZIFQ6ZSFPPIOV7QPC25OPEWE}

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	2026-05-18T01:10:28.954897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7b282c3d9915ef43abf83c5aeb9e4b10d6cbdb8f54724e66721ecd874849d2b

Aliases

arxiv: 1606.05394 · arxiv_version: 1606.05394v2 · doi: 10.48550/arxiv.1606.05394 · pith_short_12: 26ZIFQ6ZSFPP · pith_short_16: 26ZIFQ6ZSFPPIOV7 · pith_short_8: 26ZIFQ6Z

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/26ZIFQ6ZSFPPIOV7QPC25OPEWE \
  | 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: d7b282c3d9915ef43abf83c5aeb9e4b10d6cbdb8f54724e66721ecd874849d2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd2defb0d624e51e5a902ed8403a0a7aa7408770db3be3d9dd9db6131da32e5b",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-06-17T01:10:37Z",
    "title_canon_sha256": "5f1bf51f60be5061b35950d4d1c894d527e392672ff183f6865cfbe5e2312fc1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.05394",
    "kind": "arxiv",
    "version": 2
  }
}