Pith Number

pith:IT5DBDI7

pith:1998:IT5DBDI7YEDUFM33RUDTPZMBLB

not attested not anchored not stored refs pending

The K-band Hubble diagram for the brightest cluster galaxies: a test of hierarchical galaxy formation models

(2) University of Durham, (3) MPA, A. Aragon-Salamanca (1), Cambridge, C.M. Baugh (2), G. Kauffmann (3) ((1) IoA, Munich)

arxiv:astro-ph/9801277 v1 · 1998-01-28 · 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{IT5DBDI7YEDUFM33RUDTPZMBLB}

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	2026-07-04T16:06:07.015067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44fa308d1fc10742b37b8d0737e581587957ed98d603309d2506c4ece5aade18

Aliases

arxiv: astro-ph/9801277 · arxiv_version: astro-ph/9801277v1 · doi: 10.48550/arxiv.astro-ph/9801277 · pith_short_12: IT5DBDI7YEDU · pith_short_16: IT5DBDI7YEDUFM33 · pith_short_8: IT5DBDI7

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/IT5DBDI7YEDUFM33RUDTPZMBLB \
  | 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: 44fa308d1fc10742b37b8d0737e581587957ed98d603309d2506c4ece5aade18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aafb6a1524f74a6823c42116043c3301a1afd24c4550dd8c392f018eaacf1567",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-01-28T13:07:31Z",
    "title_canon_sha256": "5743b928832c64cdd50b18f5cead0a16e94fa1555c1ff4a014f5855bfbe64ec1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9801277",
    "kind": "arxiv",
    "version": 1
  }
}