Pith Number

pith:Y7AHATKL

pith:2003:Y7AHATKL6E4M74ZPSZSID3SBKN

not attested not anchored not stored refs pending

Internal Kinematics of Spiral Galaxies in Distant Clusters

A. Boehm, A. Fritz (Uni.-Sternwarte Goettingen), B. L. Ziegler, J. Heidt (Landessternwarte Heidelberg), K. Jaeger

arxiv:astro-ph/0303417 v1 · 2003-03-18 · 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{Y7AHATKL6E4M74ZPSZSID3SBKN}

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	2026-07-04T14:12:39.312470Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7c0704d4bf138cff32f966481ee41534e833d2a70aec5c6de07ad7d4637b70b

Aliases

arxiv: astro-ph/0303417 · arxiv_version: astro-ph/0303417v1 · doi: 10.48550/arxiv.astro-ph/0303417 · pith_short_12: Y7AHATKL6E4M · pith_short_16: Y7AHATKL6E4M74ZP · pith_short_8: Y7AHATKL

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/Y7AHATKL6E4M74ZPSZSID3SBKN \
  | 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: c7c0704d4bf138cff32f966481ee41534e833d2a70aec5c6de07ad7d4637b70b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b191296bdc5592721e01da87ec347ffb67bb500597d7172d02b1c58e111da375",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-03-18T16:52:01Z",
    "title_canon_sha256": "7ed768b36cf34f91a5003b8d7230396b1aa60506556dbe381f802f73d89c1ce3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0303417",
    "kind": "arxiv",
    "version": 1
  }
}