Pith Number

pith:YT5A2CHF

pith:2011:YT5A2CHFSLFHPZX44K6ZV5P2II

not attested not anchored not stored refs pending

Predicting the frequencies of young and of tiny galaxies

1), 2), (2) Racah Institute of Physics, (3) Dept. of Astronomy, (4) LAM, Andrea Cattaneo (4) ((1) IAP (UMR 7095: CNRS & UPMC), Charlottesville, Dylan Tweed (1, Gary A. Mamon (1), Hebrew University, Jerusalem, Marseille), Trinh X. Thuan (3, Univ. of Virginia

arxiv:1103.5349 v1 · 2011-03-28 · 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{YT5A2CHFSLFHPZX44K6ZV5P2II}

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	2026-05-18T02:02:44.254531Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4fa0d08e592ca77e6fce2bd9af5fa421279331dbd4a899c0b94c490a5a9c6f0

Aliases

arxiv: 1103.5349 · arxiv_version: 1103.5349v1 · doi: 10.48550/arxiv.1103.5349 · pith_short_12: YT5A2CHFSLFH · pith_short_16: YT5A2CHFSLFHPZX4 · pith_short_8: YT5A2CHF

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/YT5A2CHFSLFHPZX44K6ZV5P2II \
  | 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: c4fa0d08e592ca77e6fce2bd9af5fa421279331dbd4a899c0b94c490a5a9c6f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75d1e2e4544a27ab40eb887d3bb49efe3609b6d990dc9327c67a962f2c9c8306",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-03-28T13:40:45Z",
    "title_canon_sha256": "2e5b0b460d77dd33641dc94719f7a429d3da0177b8bd90278256590814ec0b9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.5349",
    "kind": "arxiv",
    "version": 1
  }
}