Pith Number

pith:QYT5SISF

pith:2018:QYT5SISFJKQO5EFF2KXADCNB7V

not attested not anchored not stored refs pending

Chemical Abundances of Globular Clusters in NGC 5128 (Centaurus A)

Lex Kaper, Paul Groot, Scott Trager, S{\o}ren Larsen, Svea Hernandez

arxiv:1802.09534 v1 · 2018-02-26 · 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{QYT5SISFJKQO5EFF2KXADCNB7V}

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	2026-05-18T00:22:30.784649Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8627d922454aa0ee90a5d2ae0189a1fd498b342a4e738bf13a335b3b5154c9bd

Aliases

arxiv: 1802.09534 · arxiv_version: 1802.09534v1 · doi: 10.48550/arxiv.1802.09534 · pith_short_12: QYT5SISFJKQO · pith_short_16: QYT5SISFJKQO5EFF · pith_short_8: QYT5SISF

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/QYT5SISFJKQO5EFF2KXADCNB7V \
  | 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: 8627d922454aa0ee90a5d2ae0189a1fd498b342a4e738bf13a335b3b5154c9bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f35e1d9c855b5b9e1f1c5500ee147b786759c9ee73d0ed4e775810d411530bfb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-02-26T19:00:01Z",
    "title_canon_sha256": "d5c0e5c8dc40cd28b9d7ec81f86fdf165bc5633d3b3ec7db67394b9514388636"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.09534",
    "kind": "arxiv",
    "version": 1
  }
}