Pith Number

pith:DI4IQ6L4

pith:2018:DI4IQ6L4T4ZN2LZHHW5MPUISAN

not attested not anchored not stored refs pending

Chemical composition of giant stars in the open cluster IC 4756

Arnas Drazdauskas, Gra\v{z}ina Tautvai\v{s}ien\.e, Rodolfo Smiljanic, Vilius Bagdonas, Yuriy Chorniy

arxiv:1804.01975 v1 · 2018-04-05 · 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{DI4IQ6L4T4ZN2LZHHW5MPUISAN}

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	2026-05-18T00:08:42.668739Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a3888797c9f32dd2f273dbac7d112035438cee12c043690adaacbccbc889091

Aliases

arxiv: 1804.01975 · arxiv_version: 1804.01975v1 · doi: 10.48550/arxiv.1804.01975 · pith_short_12: DI4IQ6L4T4ZN · pith_short_16: DI4IQ6L4T4ZN2LZH · pith_short_8: DI4IQ6L4

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/DI4IQ6L4T4ZN2LZHHW5MPUISAN \
  | 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: 1a3888797c9f32dd2f273dbac7d112035438cee12c043690adaacbccbc889091

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1b157589fa3f7e9c67938fe52a1ee7c5935cd25568663cf722bba5b195f1ee0",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-04-05T17:53:23Z",
    "title_canon_sha256": "d29fc9a325e7c296ffeadd442a5882f0e52d4990db8608a8fb70f5157e16726b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.01975",
    "kind": "arxiv",
    "version": 1
  }
}