Pith Number

pith:WH37FFJ4

pith:2018:WH37FFJ4FZQ4NWZ65LEA3PTRKF

not attested not anchored not stored refs pending

The WAGGS project - II. The reliability of the calcium triplet as a metallicity indicator in integrated stellar light

Adebusola Alabi, Alexa Villaume, Amelia Fraser-McKelvie, Caroline Foster, Christopher Usher, Hannah S. Dalgleish, Leonie Chevalier, Nicola Pastorello, Pierluigi Cerulo, Ricardo P. Schiavon, Richard McDermid, Sabine Bellstedt, Samantha Penny, Sebastian Kamann, Thomas Beckwith

arxiv:1809.07650 v1 · 2018-09-20 · 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{WH37FFJ4FZQ4NWZ65LEA3PTRKF}

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	2026-05-18T00:03:45.111868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1f7f2953c2e61c6db3eeac80dbe715169a7f9485f67d7bcb6e3c2e8163168d7

Aliases

arxiv: 1809.07650 · arxiv_version: 1809.07650v1 · doi: 10.48550/arxiv.1809.07650 · pith_short_12: WH37FFJ4FZQ4 · pith_short_16: WH37FFJ4FZQ4NWZ6 · pith_short_8: WH37FFJ4

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/WH37FFJ4FZQ4NWZ65LEA3PTRKF \
  | 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: b1f7f2953c2e61c6db3eeac80dbe715169a7f9485f67d7bcb6e3c2e8163168d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "769bf8869125101519b0e2d434fece116b8a013df711cc67c792c8571a771c8d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-09-20T14:28:22Z",
    "title_canon_sha256": "7edc7a93e34d197eb17036ddf14b0aab29fb44b7fa3ff0a433f06071522f3d87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.07650",
    "kind": "arxiv",
    "version": 1
  }
}