Pith Number

pith:DRZOPFAI

pith:2019:DRZOPFAI4KN4FDSPUE43VGCD5O

not attested not anchored not stored refs pending

Metal-poor stars observed with the automated planet finder telescope. I. Discovery of five carbon-enhanced metal-poor stars from LAMOST

Ali Taani, Daniela Carollo, Gang Zhao, Haining Li, Iminhaji Ablimit, Liang Wang, Mohammad K. Mardini, Sofya Alexeeva, Vinicius M. Placco

arxiv:1904.09603 v1 · 2019-04-21 · 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{DRZOPFAI4KN4FDSPUE43VGCD5O}

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	2026-05-17T23:47:24.777433Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c72e79408e29bc28e4fa139ba9843eb984c8f6f16ab5dca1cea13f0892b9fe3

Aliases

arxiv: 1904.09603 · arxiv_version: 1904.09603v1 · doi: 10.48550/arxiv.1904.09603 · pith_short_12: DRZOPFAI4KN4 · pith_short_16: DRZOPFAI4KN4FDSP · pith_short_8: DRZOPFAI

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/DRZOPFAI4KN4FDSPUE43VGCD5O \
  | 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: 1c72e79408e29bc28e4fa139ba9843eb984c8f6f16ab5dca1cea13f0892b9fe3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ecd1698b8f17a3dddd777e264eed3463f96cdfd5a80bba1b66fce94cfcd7138",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-04-21T14:10:10Z",
    "title_canon_sha256": "d5060cf4fdd94c025d3e6f238956ed03c233b017030fe987e53534238d314730"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.09603",
    "kind": "arxiv",
    "version": 1
  }
}