Pith Number

pith:F2KJKVZZ

pith:2016:F2KJKVZZWZUPA52YGNPIMB3I23

not attested not anchored not stored refs pending

The geometry and origin of ultra-diffuse ghost galaxies

Andreas Burkert

arxiv:1609.00052 v3 · 2016-08-31 · 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{F2KJKVZZWZUPA52YGNPIMB3I23}

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	2026-05-18T00:47:13.108235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e94955739b668f07758335e860768d6e81b40120ca5dc01d94ec1b807154859

Aliases

arxiv: 1609.00052 · arxiv_version: 1609.00052v3 · doi: 10.48550/arxiv.1609.00052 · pith_short_12: F2KJKVZZWZUP · pith_short_16: F2KJKVZZWZUPA52Y · pith_short_8: F2KJKVZZ

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/F2KJKVZZWZUPA52YGNPIMB3I23 \
  | 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: 2e94955739b668f07758335e860768d6e81b40120ca5dc01d94ec1b807154859

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "019473e7152418109e6b698e6b25ed8b9f4d2bbf7b40a6977d0f6c7dc61b8225",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-08-31T21:55:20Z",
    "title_canon_sha256": "ac31d3a553d54d3649c34d939da439261ac2769c16aa988a94047a649ea58bd5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.00052",
    "kind": "arxiv",
    "version": 3
  }
}