Pith Number

pith:GHZ6MQXM

pith:1995:GHZ6MQXMC6ZNFFSYR67ROKRU7H

not attested not anchored not stored refs pending

Stellar Populations of Bulges and Disks: New Insights from Near-IR Colours

Groningen, M. Balcells (Kapteyn Instituut, NL), R.F. Peletier

arxiv:astro-ph/9509131 v2 · 1995-09-26 · 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{GHZ6MQXMC6ZNFFSYR67ROKRU7H}

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	2026-07-04T23:50:28.577307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31f3e642ec17b2d296588fbf172a34f9c3f62b7e7552753e9e41b0c1582b8be2

Aliases

arxiv: astro-ph/9509131 · arxiv_version: astro-ph/9509131v2 · doi: 10.48550/arxiv.astro-ph/9509131 · pith_short_12: GHZ6MQXMC6ZN · pith_short_16: GHZ6MQXMC6ZNFFSY · pith_short_8: GHZ6MQXM

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/GHZ6MQXMC6ZNFFSYR67ROKRU7H \
  | 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: 31f3e642ec17b2d296588fbf172a34f9c3f62b7e7552753e9e41b0c1582b8be2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5db414d0e0b05b42f395510935358f4c613ef97c33d4d3108864d428f734dfef",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-09-26T09:35:33Z",
    "title_canon_sha256": "fe32ea39cb2f0ce9e3d6584c09693e13f5a32154b979b1bd94ed2b3ff800e48d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9509131",
    "kind": "arxiv",
    "version": 2
  }
}