Pith Number

pith:UV2MRHJH

pith:2014:UV2MRHJHK5ADOVWU4LZUPG47S7

not attested not anchored not stored refs pending

RProtoBuf: Efficient Cross-Language Data Serialization in R

Dirk Eddelbuettel, Jeroen Ooms, Murray Stokely

arxiv:1401.7372 v1 · 2014-01-28 · stat.CO · cs.MS · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UV2MRHJHK5ADOVWU4LZUPG47S7}

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	2026-05-18T01:10:33.690007Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a574c89d2757403756d4e2f3479b9f97cf367147059856c2c4444b2c22ad2bba

Aliases

arxiv: 1401.7372 · arxiv_version: 1401.7372v1 · doi: 10.48550/arxiv.1401.7372 · pith_short_12: UV2MRHJHK5AD · pith_short_16: UV2MRHJHK5ADOVWU · pith_short_8: UV2MRHJH

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/UV2MRHJHK5ADOVWU4LZUPG47S7 \
  | 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: a574c89d2757403756d4e2f3479b9f97cf367147059856c2c4444b2c22ad2bba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fa1397a213c161ab4d3d9ac3c434b4c86e5aaec0a7dd064fe69fd2ad95baec0",
    "cross_cats_sorted": [
      "cs.MS",
      "cs.SE"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2014-01-28T23:57:02Z",
    "title_canon_sha256": "7728a1e52694fc395e432b70add5c1a0ce0113126193c79c91f664b08bc1c240"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.7372",
    "kind": "arxiv",
    "version": 1
  }
}