Pith Number

pith:JTWPU3CW

pith:2015:JTWPU3CWITLPB35P6NMKEXUABH

not attested not anchored not stored refs pending

Failure of rotation and notable success of age spread to reproduce the CMDs of star clusters NGC 1831, NGC 1868 and NGC 2249

Caiyan Mao, Liyun Zhang, Zhongmu Li

arxiv:1504.02571 v1 · 2015-04-10 · astro-ph.SR · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JTWPU3CWITLPB35P6NMKEXUABH}

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	2026-05-18T02:19:07.344594Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4cecfa6c5644d6f0efaff358a25e8009d783c362e5e5ffb6b83997e5d1a7677c

Aliases

arxiv: 1504.02571 · arxiv_version: 1504.02571v1 · doi: 10.48550/arxiv.1504.02571 · pith_short_12: JTWPU3CWITLP · pith_short_16: JTWPU3CWITLPB35P · pith_short_8: JTWPU3CW

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/JTWPU3CWITLPB35P6NMKEXUABH \
  | 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: 4cecfa6c5644d6f0efaff358a25e8009d783c362e5e5ffb6b83997e5d1a7677c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fa2ac42acc5bc510dbbaec52486e76a2bef5c725b6845e80e056d75f9e81c98",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-04-10T07:37:53Z",
    "title_canon_sha256": "7a745b70a2bd414260d565455abeae3d86a9963dbb6f089f0cc86dc89f01f4e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.02571",
    "kind": "arxiv",
    "version": 1
  }
}