Pith Number

pith:GOGFT7K3

pith:2018:GOGFT7K3Y7L57JQKINEPC6EQKG

not attested not anchored not stored refs pending

On the [$\alpha$/Fe]-[Fe/H] relations in early-type galaxies

Chiaki Kobayashi, Fiorenzo Vincenzo, Philip Taylor

arxiv:1807.03416 v1 · 2018-07-09 · 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{GOGFT7K3Y7L57JQKINEPC6EQKG}

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	2026-05-18T00:09:10.914299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

338c59fd5bc7d7dfa60a4348f17890518cefddfcd6ce40697ca93acac883bd5a

Aliases

arxiv: 1807.03416 · arxiv_version: 1807.03416v1 · doi: 10.48550/arxiv.1807.03416 · pith_short_12: GOGFT7K3Y7L5 · pith_short_16: GOGFT7K3Y7L57JQK · pith_short_8: GOGFT7K3

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/GOGFT7K3Y7L57JQKINEPC6EQKG \
  | 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: 338c59fd5bc7d7dfa60a4348f17890518cefddfcd6ce40697ca93acac883bd5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0dd40ae9e8c5e8095ec2ce1318be5fe37653a34f34ebb2bef1604aa8dc1a8828",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-07-09T22:59:12Z",
    "title_canon_sha256": "cb023a06699fe7f053a93a78e9eb063f181fe32cc0d31419bbb1961b78aaf8bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.03416",
    "kind": "arxiv",
    "version": 1
  }
}