Pith Number

pith:CBVIBIUP

pith:1997:CBVIBIUPMHI7FOQ364VGQKWBHS

not attested not anchored not stored refs pending

Dwarf Elliptical Galaxies in the M81 Group: The Structure and Stellar Populations of BK5N and F8D1

G. S. Da Costa, Nelson Caldwell, Patrick Seitzer, Taft E. Armandroff

arxiv:astro-ph/9710286 v2 · 1997-10-24 · 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{CBVIBIUPMHI7FOQ364VGQKWBHS}

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	2026-07-04T16:03:19.560937Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

106a80a28f61d1f2ba1bf72a682ac13c82d8a4fc2e44fa453d476aae1ac6478d

Aliases

arxiv: astro-ph/9710286 · arxiv_version: astro-ph/9710286v2 · doi: 10.48550/arxiv.astro-ph/9710286 · pith_short_12: CBVIBIUPMHI7 · pith_short_16: CBVIBIUPMHI7FOQ3 · pith_short_8: CBVIBIUP

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/CBVIBIUPMHI7FOQ364VGQKWBHS \
  | 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: 106a80a28f61d1f2ba1bf72a682ac13c82d8a4fc2e44fa453d476aae1ac6478d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07061d4201d5d60daa5aa1a4a8aa8b67e82e91de912d5ad3eb4619a5009dcbd4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-10-24T21:06:27Z",
    "title_canon_sha256": "30e8fc9a9a1246adc2d1b1926617e4436af994913e91fd13483245368b4cc9a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9710286",
    "kind": "arxiv",
    "version": 2
  }
}