Pith Number

pith:KFCR6U2N

pith:1997:KFCR6U2NGLUVSH3FMF3FU2GYOJ

not attested not anchored not stored refs pending

The relative distances to the Virgo, Fornax, and Coma clusters of galaxies through the Dn-sigma and the Fundamental Plane relations

(2) Dip. di Sc. Fis., 3), (3) Oss. Astron. di Capodimonte, (4) Space Tel. Sc. Institute, Baltimore (USA)), M. Capaccioli (2, M. D'Onofrio (1), N. Caon (4) ((1) Dip. di Astron., S. Zaggia (1, Univ. di Napoli, Univ. di Padova

arxiv:astro-ph/9703157 v1 · 1997-03-25 · 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{KFCR6U2NGLUVSH3FMF3FU2GYOJ}

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	2026-05-18T01:40:17.930128Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51451f534d32e9591f6561765a68d8727dd86d83df45393fca5cd3af63ab3a2f

Aliases

arxiv: astro-ph/9703157 · arxiv_version: astro-ph/9703157v1 · doi: 10.48550/arxiv.astro-ph/9703157 · pith_short_12: KFCR6U2NGLUV · pith_short_16: KFCR6U2NGLUVSH3F · pith_short_8: KFCR6U2N

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/KFCR6U2NGLUVSH3FMF3FU2GYOJ \
  | 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: 51451f534d32e9591f6561765a68d8727dd86d83df45393fca5cd3af63ab3a2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a158f5cc9d54519ed77db87d0e84e5ff5bfe6dca7e7eab3fb297932d375ab849",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-03-25T18:40:00Z",
    "title_canon_sha256": "be26b3d4123e50474150392b72b4faf4f267ec2294c954962af11cd13c6fbeb4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9703157",
    "kind": "arxiv",
    "version": 1
  }
}