Pith Number

pith:Y46MORRP

pith:2020:Y46MORRPJFCH3TPW2KHHEX3G2D

not attested not anchored not stored refs pending

Leveraging HST with MUSE: I. Sodium abundance variations within the 2 Gyr-old cluster NGC 1978

B. Giesers, C. Lardo, C. Usher, I. Cabrera-Ziri, M. Latour, M. Salaris, N. Bastian, N. Kacharov, S. Dreizler, S. Kamann, S. Martocchia, S. Saracino, T.-O. Husser

arxiv:2009.03320 v1 · 2020-09-07 · 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{Y46MORRPJFCH3TPW2KHHEX3G2D}

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	2026-07-05T01:39:06.293243Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c73cc7462f49447dcdf6d28e725f66d0da77f35df30907a2435de2d8b9860ec6

Aliases

arxiv: 2009.03320 · arxiv_version: 2009.03320v1 · doi: 10.48550/arxiv.2009.03320 · pith_short_12: Y46MORRPJFCH · pith_short_16: Y46MORRPJFCH3TPW · pith_short_8: Y46MORRP

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/Y46MORRPJFCH3TPW2KHHEX3G2D \
  | 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: c73cc7462f49447dcdf6d28e725f66d0da77f35df30907a2435de2d8b9860ec6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0040ac59c99130f57a86940187ab1435eff4347d27a9730f75e0a8c576094cda",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-09-07T18:00:01Z",
    "title_canon_sha256": "0d1ad4a494170dc29489f5c245bd6ac7fa905f4d9e938149b63627e9dbe74aed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.03320",
    "kind": "arxiv",
    "version": 1
  }
}