Pith Number

pith:XM3LEWKS

pith:2016:XM3LEWKSPYLMZT3CGMD3BKX6QA

not attested not anchored not stored refs pending

Cuba: the strategic choice of advanced scientific development, 1959-2014

Angelo Baracca, Rosella Franconi

arxiv:1609.00311 v1 · 2016-09-01 · physics.hist-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XM3LEWKSPYLMZT3CGMD3BKX6QA}

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	2026-05-18T01:06:25.160421Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb36b259527e16cccf623307b0aafe801b1a0f4dcc53878d8162be5158d8c974

Aliases

arxiv: 1609.00311 · arxiv_version: 1609.00311v1 · doi: 10.48550/arxiv.1609.00311 · pith_short_12: XM3LEWKSPYLM · pith_short_16: XM3LEWKSPYLMZT3C · pith_short_8: XM3LEWKS

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/XM3LEWKSPYLMZT3CGMD3BKX6QA \
  | 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: bb36b259527e16cccf623307b0aafe801b1a0f4dcc53878d8162be5158d8c974

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a356744d92c3018ed49a6943d29da6a53ecca57c02be29b1c50079cb0a8c7506",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2016-09-01T16:44:26Z",
    "title_canon_sha256": "0531998dac1ababe4ee55992943ea88ea39b951a099a3d286a9aecf113b64e96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.00311",
    "kind": "arxiv",
    "version": 1
  }
}