Pith Number

pith:LPMEFBHV

pith:2020:LPMEFBHVJQPD4SDPHRZCQ2UMAG

not attested not anchored not stored refs pending

World of Code: Enabling a Research Workflow for Mining and Analyzing the Universe of Open Source VCS data

Adam Tutko, Audris Mockus, Chris Bogart, David Kennard, Marat Valiev, Russell Zaretzki, Sadika Amreen, Tapajit Dey, Yuxing Ma

arxiv:2010.16196 v1 · 2020-10-30 · 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{LPMEFBHVJQPD4SDPHRZCQ2UMAG}

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	2026-07-05T01:47:50.216555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5bd84284f54c1e3e486f3c72286a8c0194255f1e1f48539f75599f554a28f5c2

Aliases

arxiv: 2010.16196 · arxiv_version: 2010.16196v1 · doi: 10.48550/arxiv.2010.16196 · pith_short_12: LPMEFBHVJQPD · pith_short_16: LPMEFBHVJQPD4SDP · pith_short_8: LPMEFBHV

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/LPMEFBHVJQPD4SDPHRZCQ2UMAG \
  | 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: 5bd84284f54c1e3e486f3c72286a8c0194255f1e1f48539f75599f554a28f5c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5eb9022ecf9fd47429326ac7ef774c7bd187ad0de4a6fb7a710aa27e636ad081",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2020-10-30T11:16:48Z",
    "title_canon_sha256": "7b373d1d15be850585def3915bd81a56ac23f03996d7b37e0d95d21908d3e9d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.16196",
    "kind": "arxiv",
    "version": 1
  }
}