Pith Number

pith:J25RPGWO

pith:1999:J25RPGWO6XNSX53N5QTMOLI3DG

not attested not anchored not stored refs pending

Star formation history of early-type galaxies in low density environments

A. Bressan, C. Chiosi & R. Rampazzo, M. Longhetti

arxiv:astro-ph/9910032 v1 · 1999-10-02 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J25RPGWO6XNSX53N5QTMOLI3DG}

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	2026-05-18T01:07:36.002457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ebb179acef5db2bf76dec26c72d1b19911f936aadb05ef2d9858e01e398743c

Aliases

arxiv: astro-ph/9910032 · arxiv_version: astro-ph/9910032v1 · doi: 10.48550/arxiv.astro-ph/9910032 · pith_short_12: J25RPGWO6XNS · pith_short_16: J25RPGWO6XNSX53N · pith_short_8: J25RPGWO

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/J25RPGWO6XNSX53N5QTMOLI3DG \
  | 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: 4ebb179acef5db2bf76dec26c72d1b19911f936aadb05ef2d9858e01e398743c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e54252c3ddb8b2ff032d6d8f8be112a77bc2d88696e0cc20e3d037ace165e478",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-10-02T14:37:47Z",
    "title_canon_sha256": "3b7b0f79f255934774b691b32c32406bb3ca9373048fefca229686100f6c7036"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9910032",
    "kind": "arxiv",
    "version": 1
  }
}