Pith Number

pith:YFM2ICP3

pith:2019:YFM2ICP3UDEO7T3OV44L3OWWUS

not attested not anchored not stored refs pending

Characterizing Bitcoin donations to open source software on GitHub

Husam Al Jawaheri, Mashael Al Sabah, Yazan Boshmaf, Yury Zhauniarovich

arxiv:1907.04002 v1 · 2019-07-09 · cs.CY · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YFM2ICP3UDEO7T3OV44L3OWWUS}

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	2026-05-17T23:41:06.044689Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c159a409fba0c8efcf6eaf38bdbad6a4a11fab5b867be3f7937e93b1f7db9cf3

Aliases

arxiv: 1907.04002 · arxiv_version: 1907.04002v1 · doi: 10.48550/arxiv.1907.04002 · pith_short_12: YFM2ICP3UDEO · pith_short_16: YFM2ICP3UDEO7T3O · pith_short_8: YFM2ICP3

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/YFM2ICP3UDEO7T3OV44L3OWWUS \
  | 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: c159a409fba0c8efcf6eaf38bdbad6a4a11fab5b867be3f7937e93b1f7db9cf3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27589075cfa9f63cb149e67db6d801856dd63e6c23d598b071a9ebe0a403d031",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2019-07-09T06:23:49Z",
    "title_canon_sha256": "44a6ebc524373247fb7e19c0a29bf982a0550bf76f202432fa26f17e23290632"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04002",
    "kind": "arxiv",
    "version": 1
  }
}