Pith Number

pith:BOGJ5PCO

pith:2008:BOGJ5PCO2HK7LHR55EBNKUGYB6

not attested not anchored not stored refs pending

Colors and Mass-to-Light Ratios of Bulges and Disks of Nearby Spiral Galaxies

Akira Yoshino, Takashi Ichikawa

arxiv:0802.2179 v1 · 2008-02-15 · 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{BOGJ5PCO2HK7LHR55EBNKUGYB6}

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	2026-05-18T02:16:01.063789Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b8c9ebc4ed1d5f59e3de902d550d80fb4995dae8d5bb4ea6b23b0792f749faf

Aliases

arxiv: 0802.2179 · arxiv_version: 0802.2179v1 · doi: 10.48550/arxiv.0802.2179 · pith_short_12: BOGJ5PCO2HK7 · pith_short_16: BOGJ5PCO2HK7LHR5 · pith_short_8: BOGJ5PCO

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/BOGJ5PCO2HK7LHR55EBNKUGYB6 \
  | 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: 0b8c9ebc4ed1d5f59e3de902d550d80fb4995dae8d5bb4ea6b23b0792f749faf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3c3ba4515682c0db9f45961b11764cebaf596ed8e25b785316e360d6e1fc7ca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-02-15T11:01:27Z",
    "title_canon_sha256": "6653d5751c8271d9de4aa669ac38a254959660a411ceac0fb8bf319d90f78707"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.2179",
    "kind": "arxiv",
    "version": 1
  }
}