Pith Number

pith:U2JUSPEO

pith:2016:U2JUSPEOTD5ILG3EVVOLZOF56J

not attested not anchored not stored refs pending

NGC 5523: An Isolated Product of Soft Galaxy Mergers?

John S. Gallagher III, Leah M. Fulmer, Ralf Kotulla

arxiv:1611.05968 v1 · 2016-11-18 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U2JUSPEOTD5ILG3EVVOLZOF56J}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:50:46.472584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a693493c8e98fa859b64ad5cbcb8bdf2741f814b868c25fd4e2acd499b67796f

Aliases

arxiv: 1611.05968 · arxiv_version: 1611.05968v1 · doi: 10.48550/arxiv.1611.05968 · pith_short_12: U2JUSPEOTD5I · pith_short_16: U2JUSPEOTD5ILG3E · pith_short_8: U2JUSPEO

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/U2JUSPEOTD5ILG3EVVOLZOF56J \
  | 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: a693493c8e98fa859b64ad5cbcb8bdf2741f814b868c25fd4e2acd499b67796f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b06426e465e2001d5105da3383f4a04a9aca7471395ab6ce70cdd5daca4adf60",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-11-18T03:45:21Z",
    "title_canon_sha256": "6b1d329aa14038ec1b5f3eebbb50e914686eb0540f4faba866bb4797ce34d46f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.05968",
    "kind": "arxiv",
    "version": 1
  }
}