Pith Number

pith:UK63XY3W

pith:2020:UK63XY3WPT6NOX6L6KZUQ7FVTD

not attested not anchored not stored refs pending

The first detection of ultra-diffuse galaxies in the Hydra I cluster from VEGAS survey

A. La Marca, C. Spiniello, D. A. Forbes, E. Iodice, G. D'Ago, L. Greggio, M. Arnaboldi, M. Cantiello, M. Capaccioli, M. Hilker, M. Paolillo, M. Rejkuba, M. Spavone, P. Schipani, R. Rampazzo, S. Mieske

arxiv:2007.11533 v1 · 2020-07-22 · 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{UK63XY3WPT6NOX6L6KZUQ7FVTD}

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	2026-07-05T01:40:36.165678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2bdbbe3767cfcd75fcbf2b3487cb598e27a0d3274ae8b483c2404feb52f4d67

Aliases

arxiv: 2007.11533 · arxiv_version: 2007.11533v1 · doi: 10.48550/arxiv.2007.11533 · pith_short_12: UK63XY3WPT6N · pith_short_16: UK63XY3WPT6NOX6L · pith_short_8: UK63XY3W

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/UK63XY3WPT6NOX6L6KZUQ7FVTD \
  | 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: a2bdbbe3767cfcd75fcbf2b3487cb598e27a0d3274ae8b483c2404feb52f4d67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21787b081c76b2e2d5faa1cd80c3f7eeb0afc6216b214a9d722177cb14afdd81",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-07-22T16:44:06Z",
    "title_canon_sha256": "5dc490f1226e4903415adf6f4e133574fb7029f0a43d57f1b52a9206131c2b14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.11533",
    "kind": "arxiv",
    "version": 1
  }
}