Pith Number

pith:L4SPZOMP

pith:2019:L4SPZOMPCC7BPHJEFMBW3ARDTO

not attested not anchored not stored refs pending

Bounties in Open Source Development on GitHub: A Case Study of Bountysource Bounties

Ahmed E. Hassan, Cor-Paul Bezemer, Jiayuan Zhou, Shaowei Wang, Ying Zou

arxiv:1904.02724 v1 · 2019-04-04 · 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{L4SPZOMPCC7BPHJEFMBW3ARDTO}

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	2026-05-17T23:49:19.893062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f24fcb98f10be179d242b036d82239b90acb78786557608863be259da34d0ed

Aliases

arxiv: 1904.02724 · arxiv_version: 1904.02724v1 · doi: 10.48550/arxiv.1904.02724 · pith_short_12: L4SPZOMPCC7B · pith_short_16: L4SPZOMPCC7BPHJE · pith_short_8: L4SPZOMP

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/L4SPZOMPCC7BPHJEFMBW3ARDTO \
  | 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: 5f24fcb98f10be179d242b036d82239b90acb78786557608863be259da34d0ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53e423b090019e13ce5838cb080f035461b42301aaee9b3039a2a941d0e212c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-04-04T18:02:18Z",
    "title_canon_sha256": "f6e47af5be7f6809adf0a2a26558eebbc11f66a3272d4a6abd23e42d28e2b585"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.02724",
    "kind": "arxiv",
    "version": 1
  }
}