Pith Number

pith:MMQIXHIN

pith:2012:MMQIXHINFHHQI2CTJ5MQJ4RSOP

not attested not anchored not stored refs pending

The Unique Na:O Abundance Distribution in NGC 6791: The First Open(?) Cluster with Multiple Populations

C. I. Johnson, C. Pilachowski, D. Geisler, F. Bresolin, G. Carraro, J. Cummings, S. Villanova

arxiv:1207.3328 v1 · 2012-07-13 · 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{MMQIXHINFHHQI2CTJ5MQJ4RSOP}

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	2026-05-18T01:56:23.835941Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63208b9d0d29cf0468534f5904f23273c5ca6052535dba82efb8edc796da9c23

Aliases

arxiv: 1207.3328 · arxiv_version: 1207.3328v1 · doi: 10.48550/arxiv.1207.3328 · pith_short_12: MMQIXHINFHHQ · pith_short_16: MMQIXHINFHHQI2CT · pith_short_8: MMQIXHIN

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/MMQIXHINFHHQI2CTJ5MQJ4RSOP \
  | 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: 63208b9d0d29cf0468534f5904f23273c5ca6052535dba82efb8edc796da9c23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7720379cad8f0864b17973efba5d2f7ee3244be63b67297ae897de336adeabcc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-07-13T19:04:30Z",
    "title_canon_sha256": "0f006c0bf8918733d1c6aa4f3fe8365997c8ba85f6c1671b4884a84a01c3f393"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.3328",
    "kind": "arxiv",
    "version": 1
  }
}