Pith Number

pith:6HNPZWRM

pith:2016:6HNPZWRMPDYKA3SN4LLNS6IDQ5

not attested not anchored not stored refs pending

A High Stellar Velocity Dispersion and ~100 Globular Clusters for the Ultra Diffuse Galaxy Dragonfly 44

Aaron Romanowsky, Allison Merritt, Charlie Conroy, Jean Brodie, Jielai Zhang, Lamiya Mowla, Pieter van Dokkum, Roberto Abraham, Shany Danieli

arxiv:1606.06291 v2 · 2016-06-20 · astro-ph.GA · astro-ph.CO · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6HNPZWRMPDYKA3SN4LLNS6IDQ5}

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	2026-05-18T01:07:16.026474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1dafcda2c78f0a06e4de2d6d979038767ff4810476844e9a05a4fc327b50144

Aliases

arxiv: 1606.06291 · arxiv_version: 1606.06291v2 · doi: 10.48550/arxiv.1606.06291 · pith_short_12: 6HNPZWRMPDYK · pith_short_16: 6HNPZWRMPDYKA3SN · pith_short_8: 6HNPZWRM

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/6HNPZWRMPDYKA3SN4LLNS6IDQ5 \
  | 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: f1dafcda2c78f0a06e4de2d6d979038767ff4810476844e9a05a4fc327b50144

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c481170f3f5693d7b56e23f338e874f88e585729a279815b90eb71998dd5e60",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-06-20T20:00:02Z",
    "title_canon_sha256": "54ed1c4ad68c756a356a5ab162e2a6e474cac0b66580a3f63e8055316b1e5f82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.06291",
    "kind": "arxiv",
    "version": 2
  }
}