Pith Number

pith:Q7HH32MR

pith:2013:Q7HH32MR2QMLXT2QKO7DAK5MHX

not attested not anchored not stored refs pending

Dark energy and the structure of the Coma cluster of galaxies

A. D. Chernin, G. G. Byrd, G.S. Bisnovatyi-Kogan, M. J. Valtonen, M. Merafina, P. Teerikorpi

arxiv:1303.3800 v1 · 2013-03-15 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q7HH32MR2QMLXT2QKO7DAK5MHX}

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	2026-05-18T01:51:06.819307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87ce7de991d418bbcf5053be302bac3de0acefe286a803f96ca2d3245c2a016d

Aliases

arxiv: 1303.3800 · arxiv_version: 1303.3800v1 · doi: 10.48550/arxiv.1303.3800 · pith_short_12: Q7HH32MR2QML · pith_short_16: Q7HH32MR2QMLXT2Q · pith_short_8: Q7HH32MR

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/Q7HH32MR2QMLXT2QKO7DAK5MHX \
  | 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: 87ce7de991d418bbcf5053be302bac3de0acefe286a803f96ca2d3245c2a016d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "376fcee5cb7113567dcff9a285d462ef52649fe950220a33bf8c665de4d5907a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-15T15:11:14Z",
    "title_canon_sha256": "9970f1eab628209f2e29aea12bcc01fbc75e352592b55e6a9401fc93df4310c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.3800",
    "kind": "arxiv",
    "version": 1
  }
}