Pith Number

pith:G7TF23OP

pith:2022:G7TF23OPPUYENN32SEJ2ZXZ5Z4

not attested not anchored not stored refs pending

Mapping the Galactic Metallicity Gradient with Open Clusters: The State-of-the-Art and Future Challenges

Katia Cunha, Laura Magrini, Lorenzo Spina

arxiv:2202.00463 v1 · 2022-02-01 · astro-ph.GA · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{G7TF23OPPUYENN32SEJ2ZXZ5Z4}

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	2026-07-05T03:53:22.192219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37e65d6dcf7d3046b77a9113acdf3dcf39c14c72e8ff23a152a452b81c881dae

Aliases

arxiv: 2202.00463 · arxiv_version: 2202.00463v1 · doi: 10.48550/arxiv.2202.00463 · pith_short_12: G7TF23OPPUYE · pith_short_16: G7TF23OPPUYENN32 · pith_short_8: G7TF23OP

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/G7TF23OPPUYENN32SEJ2ZXZ5Z4 \
  | 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: 37e65d6dcf7d3046b77a9113acdf3dcf39c14c72e8ff23a152a452b81c881dae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8acc2eaad7b769358dfc9c18f3bac4312f3397ddf054e34e42f9d2c94482905c",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-02-01T15:17:05Z",
    "title_canon_sha256": "ddda3f108f8dea3a1019d9b2058c60ddbc8c2636d1e333358025ecbd4bb9f2d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.00463",
    "kind": "arxiv",
    "version": 1
  }
}