Pith Number

pith:PN6HUTL6

pith:2018:PN6HUTL6KLORCXQUJKYCTNRZUU

not attested not anchored not stored refs pending

Intracluster Age Gradients In Numerous Young Stellar Clusters

(2) Universidad de Valparaiso, 3), (3) Millenium Institute of Astrophysics, (4) University of Exeter, (5) Huntingdon Institute for X-ray Astronomy), Eric D. Feigelson (1), Gordon P. Garmire (5) ((1) Pennsylvania State University, Konstantin V. Getman (1), Matthew R. Bate (4), Michael A. Kuhn (2, Patrick S. Broos (1)

arxiv:1804.05077 v1 · 2018-04-13 · 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{PN6HUTL6KLORCXQUJKYCTNRZUU}

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	2026-05-18T00:18:30.628624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b7c7a4d7e52dd115e144ab029b639a5234844e82a96fb4159d209a17e5a52d3

Aliases

arxiv: 1804.05077 · arxiv_version: 1804.05077v1 · doi: 10.48550/arxiv.1804.05077 · pith_short_12: PN6HUTL6KLOR · pith_short_16: PN6HUTL6KLORCXQU · pith_short_8: PN6HUTL6

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/PN6HUTL6KLORCXQUJKYCTNRZUU \
  | 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: 7b7c7a4d7e52dd115e144ab029b639a5234844e82a96fb4159d209a17e5a52d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8853184c21b9447b96e9cf15b569e3fbefee7e43f76a3471e8fc5340564a2e56",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-04-13T18:10:39Z",
    "title_canon_sha256": "5d36f9f88056f2c80c2d9ef1f75a87327ff165b2f3e61c1358bcc040c2aff34e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.05077",
    "kind": "arxiv",
    "version": 1
  }
}