Pith Number

pith:3273XGJC

pith:2019:3273XGJC5KFCSQJ6DFYQ5JIXCI

not attested not anchored not stored refs pending

A Replication Study on Code Comprehension and Expertise using Lightweight Biometric Sensors

Daniela Girardi, Davide Fucci, Filippo Lanubile, Luigi Quaranta, Nicole Novielli

arxiv:1903.03426 v2 · 2019-03-08 · 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{3273XGJC5KFCSQJ6DFYQ5JIXCI}

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	2026-05-17T23:49:32.756888Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

debfbb9922ea8a29413e19710ea5171228855933753e0bac1a8d425c412c0f2f

Aliases

arxiv: 1903.03426 · arxiv_version: 1903.03426v2 · doi: 10.48550/arxiv.1903.03426 · pith_short_12: 3273XGJC5KFC · pith_short_16: 3273XGJC5KFCSQJ6 · pith_short_8: 3273XGJC

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/3273XGJC5KFCSQJ6DFYQ5JIXCI \
  | 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: debfbb9922ea8a29413e19710ea5171228855933753e0bac1a8d425c412c0f2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2289a1141db357dfc60fc1eb4084464e0fb18a9c0bbe0ffc35f9b73ade33754e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-03-08T13:25:07Z",
    "title_canon_sha256": "2d1b762b40b83094c10279b6ada19996f1736a618125c19086241f743cb90615"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.03426",
    "kind": "arxiv",
    "version": 2
  }
}