Pith Number

pith:P5Y5NAIJ

pith:2019:P5Y5NAIJIWH22RSGXOUCZZBFPF

not attested not anchored not stored refs pending

A consistency-test for determining whether ultra-compact dwarf galaxies could be the remnant nuclei of threshed galaxies

Alister W. Graham

arxiv:1912.08346 v1 · 2019-12-18 · 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{P5Y5NAIJIWH22RSGXOUCZZBFPF}

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	2026-07-05T00:31:36.257846Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f71d68109458fad4646bba82ce4257954e7ebd86dcdbca3d569ff7bf73e9d85

Aliases

arxiv: 1912.08346 · arxiv_version: 1912.08346v1 · doi: 10.48550/arxiv.1912.08346 · pith_short_12: P5Y5NAIJIWH2 · pith_short_16: P5Y5NAIJIWH22RSG · pith_short_8: P5Y5NAIJ

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/P5Y5NAIJIWH22RSGXOUCZZBFPF \
  | 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: 7f71d68109458fad4646bba82ce4257954e7ebd86dcdbca3d569ff7bf73e9d85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd54664fdd1bc536e8307ec9e68b470712fa565189d018806c5cba706fdf6c73",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-12-18T02:34:18Z",
    "title_canon_sha256": "bd3cf0466d1a739cc294f062c63b63bc8aa4575de21ee84d82948027a65c65f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.08346",
    "kind": "arxiv",
    "version": 1
  }
}