Pith Number

pith:ECIYMDVZ

pith:2018:ECIYMDVZOV5HMMSF7IXEDCXTDQ

not attested not anchored not stored refs pending

On the discovery of K-enhanced and possibly Mg-depleted stars throughout the Milky Way

Alexander P. Ji, Alex J. Kemp, Amanda I. Karakas, Andrew R. Casey, Anna Y. Q. Ho, Brodie J. Norfolk, Christopher A. Tout, John C. Lattanzio, Kevin C. Schlaufman, Matthew T. Miles, Melissa Ness

arxiv:1807.05693 v1 · 2018-07-16 · astro-ph.SR · 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{ECIYMDVZOV5HMMSF7IXEDCXTDQ}

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	2026-05-18T00:09:10.850453Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2091860eb9757a763245fa2e418af31c3c35d3036e32ecd2fc73803bd00ea74b

Aliases

arxiv: 1807.05693 · arxiv_version: 1807.05693v1 · doi: 10.48550/arxiv.1807.05693 · pith_short_12: ECIYMDVZOV5H · pith_short_16: ECIYMDVZOV5HMMSF · pith_short_8: ECIYMDVZ

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/ECIYMDVZOV5HMMSF7IXEDCXTDQ \
  | 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: 2091860eb9757a763245fa2e418af31c3c35d3036e32ecd2fc73803bd00ea74b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aac98c2080dc4b40596280b230bcc018e7021e1857ef8678d6ba8d358b07daf5",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-07-16T06:30:50Z",
    "title_canon_sha256": "03e76078dd1ee4750532d3164d152a669928ebba981c4a80568f256dfdab74d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.05693",
    "kind": "arxiv",
    "version": 1
  }
}