Pith Number

pith:WL7NDK4A

pith:2019:WL7NDK4AOAESPHKP3WB5UCHCUL

not attested not anchored not stored refs pending

Scientific relations between Uruguay and Argentina in the 1920s: the exact sciences

Alejandro Gangui, Eduardo L. Ortiz

arxiv:1909.02558 v1 · 2019-09-05 · 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{WL7NDK4AOAESPHKP3WB5UCHCUL}

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	2026-07-05T00:02:35.751610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2fed1ab807009279d4fdd83da08e2a2c2ac7d704598fb301b819d20b9bf8bab

Aliases

arxiv: 1909.02558 · arxiv_version: 1909.02558v1 · doi: 10.48550/arxiv.1909.02558 · pith_short_12: WL7NDK4AOAES · pith_short_16: WL7NDK4AOAESPHKP · pith_short_8: WL7NDK4A

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/WL7NDK4AOAESPHKP3WB5UCHCUL \
  | 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: b2fed1ab807009279d4fdd83da08e2a2c2ac7d704598fb301b819d20b9bf8bab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7247896ce94c8186041ea9c0a30316de2dbf541c2378153991ac61db7c0c9cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2019-09-05T17:54:48Z",
    "title_canon_sha256": "39c7924aeada13335a09265897882e1fd6020aede99994aae0dee51d6e0f75bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.02558",
    "kind": "arxiv",
    "version": 1
  }
}