Pith Number

pith:FFY3NGNG

pith:2019:FFY3NGNGKTKOH7UDMTDDCGTRMV

not attested not anchored not stored refs pending

Activity-Based Analysis of Open Source Software Contributors: Roles and Dynamics

Jinghui Cheng, Jin L.C. Guo

arxiv:1903.05277 v1 · 2019-03-13 · cs.SE · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FFY3NGNGKTKOH7UDMTDDCGTRMV}

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	2026-05-17T23:51:24.816427Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2971b699a654d4e3fe8364c6311a71655a7bc3f142af8b34434908c80b38ffbc

Aliases

arxiv: 1903.05277 · arxiv_version: 1903.05277v1 · doi: 10.48550/arxiv.1903.05277 · pith_short_12: FFY3NGNGKTKO · pith_short_16: FFY3NGNGKTKOH7UD · pith_short_8: FFY3NGNG

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/FFY3NGNGKTKOH7UDMTDDCGTRMV \
  | 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: 2971b699a654d4e3fe8364c6311a71655a7bc3f142af8b34434908c80b38ffbc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83f93ff2362ce1ae3c0f6e0408a1ce8b353017a2a95b261c9caa1c277e94e9f7",
    "cross_cats_sorted": [
      "cs.HC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-03-13T01:24:10Z",
    "title_canon_sha256": "15ecc8ed5a51f40610865b321ecd700f74c2a140dba91ace5bcfc2349d8d3f63"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.05277",
    "kind": "arxiv",
    "version": 1
  }
}