Pith Number

pith:Q5OJ5QT3

pith:2025:Q5OJ5QT3OBKFUW3VO2FXOFH7RB

not attested not anchored not stored refs pending

The frozen outskirts: a cold Hubble flow and the mass of the Local Group

Danila Makarov, Dmitry Makarov, Lidia Makarova, Noam Libeskind

arxiv:2505.06642 v1 · 2025-05-10 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q5OJ5QT3OBKFUW3VO2FXOFH7RB}

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	2026-07-05T11:19:07.128279Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

875c9ec27b70545a5b75768b7714ff887dc56a6a322936d1361f2093a986de16

Aliases

arxiv: 2505.06642 · arxiv_version: 2505.06642v1 · doi: 10.48550/arxiv.2505.06642 · pith_short_12: Q5OJ5QT3OBKF · pith_short_16: Q5OJ5QT3OBKFUW3V · pith_short_8: Q5OJ5QT3

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/Q5OJ5QT3OBKFUW3VO2FXOFH7RB \
  | 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: 875c9ec27b70545a5b75768b7714ff887dc56a6a322936d1361f2093a986de16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0fdfad65dd2854d67b58cd7715c89ff13b437b09631961d8cfbe07890c79b12f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-05-10T13:34:40Z",
    "title_canon_sha256": "1fc3d289d358ec54a41c479f908ef54d3aeba3054a56f7213f6bed4b538f50b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.06642",
    "kind": "arxiv",
    "version": 1
  }
}