Pith Number

pith:L6XGHPUA

pith:2001:L6XGHPUAOZHNQSEWWDPCUTIOJQ

not attested not anchored not stored refs pending

A study of the core of the Shapley Concentration: VI. Spectral properties of galaxies

Alessandro Baldi, Elena Zucca, Sandro Bardelli

arxiv:astro-ph/0101416 v1 · 2001-01-23 · 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{L6XGHPUAOZHNQSEWWDPCUTIOJQ}

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	2026-05-18T01:07:46.112059Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fae63be80764ed84896b0de2a4d0e4c08884a555d001facbdf7044feaf16c7a

Aliases

arxiv: astro-ph/0101416 · arxiv_version: astro-ph/0101416v1 · doi: 10.48550/arxiv.astro-ph/0101416 · pith_short_12: L6XGHPUAOZHN · pith_short_16: L6XGHPUAOZHNQSEW · pith_short_8: L6XGHPUA

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/L6XGHPUAOZHNQSEWWDPCUTIOJQ \
  | 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: 5fae63be80764ed84896b0de2a4d0e4c08884a555d001facbdf7044feaf16c7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f98beaf0c8818ad4d8fbd9792d4137cd362fcff363c76b6d31100717ea39cc2c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-01-23T17:02:22Z",
    "title_canon_sha256": "4cd49daea5f8006d9c9ee94134f4b1db4e61e7b3397690ec8857e5a7182cb2a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0101416",
    "kind": "arxiv",
    "version": 1
  }
}