Pith Number

pith:OTBZMQYG

pith:2017:OTBZMQYGSVI7HZMGDCLODJKDVK

not attested not anchored not stored refs pending

DDO 161 and UGCA 319: an isolated pair of nearby dwarf galaxies

E. Shaya, I. D. Karachentsev, L. N. Makarova, L. Rizzi, R. B. Tully, V. E. Karachentseva

arxiv:1704.07648 v1 · 2017-04-25 · 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{OTBZMQYGSVI7HZMGDCLODJKDVK}

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	2026-05-18T00:41:59.203300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74c39643069551f3e5861896e1a543aa9c6d3455462bd2b1273e0c09b128d848

Aliases

arxiv: 1704.07648 · arxiv_version: 1704.07648v1 · doi: 10.48550/arxiv.1704.07648 · pith_short_12: OTBZMQYGSVI7 · pith_short_16: OTBZMQYGSVI7HZMG · pith_short_8: OTBZMQYG

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/OTBZMQYGSVI7HZMGDCLODJKDVK \
  | 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: 74c39643069551f3e5861896e1a543aa9c6d3455462bd2b1273e0c09b128d848

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "699f0ff74e69a3939168e2a4e43bd69fdfe15655e95158405f474615006f63a1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-04-25T11:55:08Z",
    "title_canon_sha256": "0d8b552771b7adcce171dbeec07cf7dad9a6da5547bd770131bdf13a46ccd30c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.07648",
    "kind": "arxiv",
    "version": 1
  }
}