Pith Number

pith:LQFIHX3I

pith:2013:LQFIHX3ISNF4RIUROZVM46AKN4

not attested not anchored not stored refs pending

A lithium depletion boundary age of 22 Myr for NGC 1960

(2) University of Exeter, (3) University of Sheffield), Cameron P.M. Bell (2), N.J. Mayne (2), R.D. Jeffries (1), S.P. Littlefair (3) ((1) Keele University, Tim Naylor (2)

arxiv:1306.6339 v1 · 2013-06-26 · 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{LQFIHX3ISNF4RIUROZVM46AKN4}

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	2026-05-18T01:49:07.415351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c0a83df68934bc8a291766ace780a6f33c376bba0e5faf58f07a87eac1894e6

Aliases

arxiv: 1306.6339 · arxiv_version: 1306.6339v1 · doi: 10.48550/arxiv.1306.6339 · pith_short_12: LQFIHX3ISNF4 · pith_short_16: LQFIHX3ISNF4RIUR · pith_short_8: LQFIHX3I

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/LQFIHX3ISNF4RIUROZVM46AKN4 \
  | 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: 5c0a83df68934bc8a291766ace780a6f33c376bba0e5faf58f07a87eac1894e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44d1cc20fc16dc75cdb476343b0e192c1bee8ce2eb5833e79bff211d41df2786",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-06-26T20:00:31Z",
    "title_canon_sha256": "c20652c8c191bf66581ba2195b9c2f12daf6ded7eba0c81609376cd46c2d4793"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.6339",
    "kind": "arxiv",
    "version": 1
  }
}