Pith Number

pith:OZ3VCW3L

pith:2018:OZ3VCW3LYXNHPPFVPNZVREK2MC

not attested not anchored not stored refs pending

Assessing national strengths and weaknesses in research fields

Ciriaco Andrea D'Angelo, Giovanni Abramo

arxiv:1810.12834 v1 · 2018-10-30 · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OZ3VCW3LYXNHPPFVPNZVREK2MC}

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	2026-05-18T00:01:54.028047Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7677515b6bc5da77bcb57b7358915a60aeeb84f96e82705b8776338ceabe20cb

Aliases

arxiv: 1810.12834 · arxiv_version: 1810.12834v1 · doi: 10.48550/arxiv.1810.12834 · pith_short_12: OZ3VCW3LYXNH · pith_short_16: OZ3VCW3LYXNHPPFV · pith_short_8: OZ3VCW3L

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/OZ3VCW3LYXNHPPFVPNZVREK2MC \
  | 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: 7677515b6bc5da77bcb57b7358915a60aeeb84f96e82705b8776338ceabe20cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d662ebfd50858383f276d0d4d2ee98b141782d0eb2ecc40856932c076850cfd2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2018-10-30T16:06:36Z",
    "title_canon_sha256": "ee6f8616f17a45360781c065c01655da9ebc2a3583c46bda2fac195f9d4d3a8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.12834",
    "kind": "arxiv",
    "version": 1
  }
}