Pith Number

pith:T4BHAZSQ

pith:1998:T4BHAZSQLF4L5D2CR3GZNT7G4K

not attested not anchored not stored refs pending

Globular clusters in the blue compact galaxy ESO~338-IG04 (Tol~1924-416), as tracers of the star formation history. Results from HST/WFPC2 observations

G\"oran \"Ostlin, Jari R\"onnback, Nils Bergvall

arxiv:astro-ph/9804072 v1 · 1998-04-07 · 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{T4BHAZSQLF4L5D2CR3GZNT7G4K}

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	2026-07-04T14:15:45.337928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f027066505978be8f428ecd96cfe6e28ecce3ba26ab5d598f34b2f5648cb580

Aliases

arxiv: astro-ph/9804072 · arxiv_version: astro-ph/9804072v1 · doi: 10.48550/arxiv.astro-ph/9804072 · pith_short_12: T4BHAZSQLF4L · pith_short_16: T4BHAZSQLF4L5D2C · pith_short_8: T4BHAZSQ

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/T4BHAZSQLF4L5D2CR3GZNT7G4K \
  | 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: 9f027066505978be8f428ecd96cfe6e28ecce3ba26ab5d598f34b2f5648cb580

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "128ad6317a55a6abcead2b2a3495f085273c1c7132f698baf62eaea1670a3439",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-04-07T12:56:05Z",
    "title_canon_sha256": "4afc625b71a2734b3d2b0b1be51ce3e0e8056c2d429febc23b4ba8c3e4105395"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9804072",
    "kind": "arxiv",
    "version": 1
  }
}