Pith Number

pith:K2BQ4ZLZ

pith:2011:K2BQ4ZLZYMQQBA5GAZ5WMXQRLK

not attested not anchored not stored refs pending

The specific frequencies of ultra-compact dwarf galaxies

Ingo Misgeld, Michael Hilker, Steffen Mieske

arxiv:1112.4475 v1 · 2011-12-19 · 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{K2BQ4ZLZYMQQBA5GAZ5WMXQRLK}

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	2026-05-18T01:59:05.319228Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56830e6579c3210083a6067b665e115a9f19299b44ffb854b605967661ea8a67

Aliases

arxiv: 1112.4475 · arxiv_version: 1112.4475v1 · doi: 10.48550/arxiv.1112.4475 · pith_short_12: K2BQ4ZLZYMQQ · pith_short_16: K2BQ4ZLZYMQQBA5G · pith_short_8: K2BQ4ZLZ

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/K2BQ4ZLZYMQQBA5GAZ5WMXQRLK \
  | 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: 56830e6579c3210083a6067b665e115a9f19299b44ffb854b605967661ea8a67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cfa771c81888e0e8451df11ccc04df5d6184541218714fe7190b1244f9fc3588",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-12-19T21:00:01Z",
    "title_canon_sha256": "8a698278e70c0890cc84b1b001d72c38c08debd7cb7b5ac7357ef910618d75c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.4475",
    "kind": "arxiv",
    "version": 1
  }
}