Pith Number

pith:ICDPMW6T

pith:2015:ICDPMW6TNR6WA52JLNEUWSFDRG

not attested not anchored not stored refs pending

Hydra II: a faint and compact Milky Way dwarf galaxy found in the Survey of the Magellanic Stellar History

Abhijit Saha, A. Katherina Vivas, Alistair R. Walker, Andrea Kunder, Antonela Monachesi, Blair C. Conn, Carme Gallart, Catherine C. Kaleida, David L. Nidever, David Martinez-Delgado, Denis Zaritsky, Edward W. Olszewski, Eric F. Bell, Gurtina Besla, Guy S. Stringfellow, Knut Olsen, Lara Monteagudo, Maria-Rosa L. Cioni, Matteo Monelli, Nicolas F. Martin, Noelia E. D. No\"el, Ricardo R. Mu\~noz, Robert A. Gruendl, Robert D. Blum, Roeland P. van der Marel, Shoko Jin, Steven R. Majewski, Thomas J. L. de Boer, You-Hua Chu

arxiv:1503.06216 v2 · 2015-03-20 · 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{ICDPMW6TNR6WA52JLNEUWSFDRG}

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	2026-05-18T01:40:50.132572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4086f65bd36c7d6077495b494b48a3898c8daaec7123508843a39c1d2bf4dcc9

Aliases

arxiv: 1503.06216 · arxiv_version: 1503.06216v2 · doi: 10.48550/arxiv.1503.06216 · pith_short_12: ICDPMW6TNR6W · pith_short_16: ICDPMW6TNR6WA52J · pith_short_8: ICDPMW6T

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/ICDPMW6TNR6WA52JLNEUWSFDRG \
  | 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: 4086f65bd36c7d6077495b494b48a3898c8daaec7123508843a39c1d2bf4dcc9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ae778322abb614802b77f438b3059ff2b8808ab7929f9b51e992bd2de07353f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-03-20T20:00:19Z",
    "title_canon_sha256": "aff2a33e076c7b94e8b8dca3f663f2b24b018947f6bbca4ba32b7fc29767b012"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.06216",
    "kind": "arxiv",
    "version": 2
  }
}