Pith Number

pith:CDJNMBCT

pith:2010:CDJNMBCTYQ4F6IE3NFUGIV527F

not attested not anchored not stored refs pending

Star formation history of KDG 61 and KDG 64 from spectroscopy and colour-magnitude diagrams

Dmitry Makarov, Lidia Makarova, Mina Koleva, Philippe Prugniel

arxiv:1003.6061 v1 · 2010-03-31 · 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{CDJNMBCTYQ4F6IE3NFUGIV527F}

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	2026-05-18T02:08:15.464282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10d2d60453c4385f209b69686457baf96beb6fe92f71ebdae0caad2ca39dd406

Aliases

arxiv: 1003.6061 · arxiv_version: 1003.6061v1 · doi: 10.48550/arxiv.1003.6061 · pith_short_12: CDJNMBCTYQ4F · pith_short_16: CDJNMBCTYQ4F6IE3 · pith_short_8: CDJNMBCT

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/CDJNMBCTYQ4F6IE3NFUGIV527F \
  | 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: 10d2d60453c4385f209b69686457baf96beb6fe92f71ebdae0caad2ca39dd406

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "460bf58ac476e90b7f12b0ca9d89b275e92f58c97805008e7ca182f962da9510",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-03-31T14:07:16Z",
    "title_canon_sha256": "bbc3f4aa9abc30b4eaa0f9e2cc1642ef705d8dc6c49700bf0001f4f05d2e81fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.6061",
    "kind": "arxiv",
    "version": 1
  }
}