Pith Number

pith:4CBGSTRD

pith:2008:4CBGSTRDI2LKE3MXEK6W4PROE3

not attested not anchored not stored refs pending

Disentangling age and metallicity in distant unresolved stellar systems

E. Brocato, G.Raimondo, M. Cantiello

arxiv:0812.4368 v1 · 2008-12-23 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4CBGSTRDI2LKE3MXEK6W4PROE3}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:15:03.944689Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e082694e234696a26d9722bd6e3e2e26f3c511513e718e571079883b33090841

Aliases

arxiv: 0812.4368 · arxiv_version: 0812.4368v1 · doi: 10.48550/arxiv.0812.4368 · pith_short_12: 4CBGSTRDI2LK · pith_short_16: 4CBGSTRDI2LKE3MX · pith_short_8: 4CBGSTRD

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/4CBGSTRDI2LKE3MXEK6W4PROE3 \
  | 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: e082694e234696a26d9722bd6e3e2e26f3c511513e718e571079883b33090841

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad6a9cdb01eafe5152511f3209cd4e03bcebcbae2149a38e0b50c6a5604d8e2b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-12-23T11:09:28Z",
    "title_canon_sha256": "bc4098dd2cdb27f8ce42c869c48d4c89a24f99e2a3a822c813e885600b3ca309"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.4368",
    "kind": "arxiv",
    "version": 1
  }
}