Pith Number

pith:OGO7FSV5

pith:2005:OGO7FSV5FIRNWA6LQU3NX3C4B7

not attested not anchored not stored refs pending

Spatially resolved stellar populations in the isolated elliptical NGC 821

Amy Forestell & Karl Gebhardt, Duncan A. Forbes, Robert N. Proctor

arxiv:astro-ph/0506523 v1 · 2005-06-22 · 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{OGO7FSV5FIRNWA6LQU3NX3C4B7}

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	2026-05-18T01:07:31.182295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

719df2cabd2a22db03cb8536dbec5c0fc9863c3cf2c71848ba86a70c436de415

Aliases

arxiv: astro-ph/0506523 · arxiv_version: astro-ph/0506523v1 · doi: 10.48550/arxiv.astro-ph/0506523 · pith_short_12: OGO7FSV5FIRN · pith_short_16: OGO7FSV5FIRNWA6L · pith_short_8: OGO7FSV5

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/OGO7FSV5FIRNWA6LQU3NX3C4B7 \
  | 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: 719df2cabd2a22db03cb8536dbec5c0fc9863c3cf2c71848ba86a70c436de415

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ea0d55bd4ede34a205bd3ac888dbcd81b22fb9f0f3274de744364f9ee38df64",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-06-22T05:15:30Z",
    "title_canon_sha256": "6991ba9d16b08280113778a28a24e91239ed0959e607548232de63e62a5335c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0506523",
    "kind": "arxiv",
    "version": 1
  }
}