Pith Number

pith:B3Y66GQD

pith:2019:B3Y66GQDS5MIDPFSUBEL4LQLWW

not attested not anchored not stored refs pending

The Enigmatic (Almost) Dark Galaxy Coma P: Distance Measurement and Stellar Populations from HST Imaging

Andrew E. Dolphin, Catherine Ball, Elizabeth A. K. Adams, John J. Salzer, John M. Cannon, Katherine L. Rhode, Kristen B. W. McQuinn, Lukas Leisman, Martha P. Haynes, Riccardo Giovanelli, Samantha W. Brunker, Steven Janowiecki

arxiv:1901.07557 v1 · 2019-01-22 · 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{B3Y66GQDS5MIDPFSUBEL4LQLWW}

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	2026-05-17T23:55:16.749934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ef1ef1a03975881bcb2a048be2e0bb5b6628b04e5926926d0938f1681ffbac3

Aliases

arxiv: 1901.07557 · arxiv_version: 1901.07557v1 · doi: 10.48550/arxiv.1901.07557 · pith_short_12: B3Y66GQDS5MI · pith_short_16: B3Y66GQDS5MIDPFS · pith_short_8: B3Y66GQD

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/B3Y66GQDS5MIDPFSUBEL4LQLWW \
  | 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: 0ef1ef1a03975881bcb2a048be2e0bb5b6628b04e5926926d0938f1681ffbac3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf3823cf8eb75c9a4e0d59274a8d13f96b2d87b2c763ecaa32e7957c081398b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-01-22T19:00:00Z",
    "title_canon_sha256": "f05c9438fa8b2621ae4a500c4c7c7c49b45a18a4e1553ff7006f74f7cc0c164b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.07557",
    "kind": "arxiv",
    "version": 1
  }
}