Pith Number

pith:7PCTGKOI

pith:2009:7PCTGKOIJVFKIR375D3Y5WP4BC

not attested not anchored not stored refs pending

Study of the Helium Enrichment in Globular Clusters

A. A. R. Valcarce, M. Catelan (PUC-Chile)

arxiv:0910.1366 v1 · 2009-10-07 · 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{7PCTGKOIJVFKIR375D3Y5WP4BC}

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	2026-05-18T02:11:25.671981Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbc53329c84d4aa4477fe8f78ed9fc088586d2906fa5defe5886d5d98368c2e2

Aliases

arxiv: 0910.1366 · arxiv_version: 0910.1366v1 · doi: 10.48550/arxiv.0910.1366 · pith_short_12: 7PCTGKOIJVFK · pith_short_16: 7PCTGKOIJVFKIR37 · pith_short_8: 7PCTGKOI

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/7PCTGKOIJVFKIR375D3Y5WP4BC \
  | 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: fbc53329c84d4aa4477fe8f78ed9fc088586d2906fa5defe5886d5d98368c2e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f662f24d435bcac8978bdeeab2a4250140c7b24c52b7dfbd1bc2684feeb8bb4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-10-07T21:33:01Z",
    "title_canon_sha256": "baf2346b0c3eeac7c880dd9d061c187afac2ba3abf6404a146465f870e4e78ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.1366",
    "kind": "arxiv",
    "version": 1
  }
}