Pith Number

pith:F45GV6IK

pith:1996:F45GV6IKFK6CI5EGIQLIYZBDBI

not attested not anchored not stored refs pending

Scale Lengths in Disk Surface Brightness as probes of Dust Extinction in 3 Spiral Galaxies: M 51, NGC 3631 and M 100

Groningen, Imperial College), J.E. Beckman, J.H. Knapen, L.J. Gentet (IAC, Montreal, R.F. Peletier, R.L.M. Corradi

arxiv:astro-ph/9602098 v1 · 1996-02-19 · 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{F45GV6IKFK6CI5EGIQLIYZBDBI}

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	2026-07-04T15:59:35.410023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f3a6af90a2abc24748644168c64230a12caf47052de8946c077e2dc713f7cd9

Aliases

arxiv: astro-ph/9602098 · arxiv_version: astro-ph/9602098v1 · doi: 10.48550/arxiv.astro-ph/9602098 · pith_short_12: F45GV6IKFK6C · pith_short_16: F45GV6IKFK6CI5EG · pith_short_8: F45GV6IK

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/F45GV6IKFK6CI5EGIQLIYZBDBI \
  | 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: 2f3a6af90a2abc24748644168c64230a12caf47052de8946c077e2dc713f7cd9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be6d06c8290ac84b8df2afd330e479f1aa79f18872f440e6661bf68beb561df1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-02-19T17:50:34Z",
    "title_canon_sha256": "ad29054fdd3344d06119dd55a4bd921a2e36e4c9044b19ae87f2e3643f1aca62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9602098",
    "kind": "arxiv",
    "version": 1
  }
}