Pith Number

pith:2QUMHNTP

pith:2026:2QUMHNTPWRYKEPZ2LGC3GEISXE

not attested not anchored not stored refs pending

Ensuring Open Source Integrity: The Intersection of Copy-Based Reuse and License Compliance

Audris Mockus, Bogdan Vasilescu, Mahmoud Jahanshahi

arxiv:2606.23495 v1 · 2026-06-22 · 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{2QUMHNTPWRYKEPZ2LGC3GEISXE}

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	2026-06-23T03:14:21.552356Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d428c3b66fb470a23f3a5985b31112b934e52c575a4e75616dce6309cdb2ee28

Aliases

arxiv: 2606.23495 · arxiv_version: 2606.23495v1 · doi: 10.48550/arxiv.2606.23495 · pith_short_12: 2QUMHNTPWRYK · pith_short_16: 2QUMHNTPWRYKEPZ2 · pith_short_8: 2QUMHNTP

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/2QUMHNTPWRYKEPZ2LGC3GEISXE \
  | 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: d428c3b66fb470a23f3a5985b31112b934e52c575a4e75616dce6309cdb2ee28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60b4a8b92c509c828e66f3fd9742c50f00dc2227b9947bdee74443991db1ce54",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2026-06-22T15:44:06Z",
    "title_canon_sha256": "0113961c7330c7b28254e843a825f1a3d1acff372125bc1a0df2cf05bf7ff818"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.23495",
    "kind": "arxiv",
    "version": 1
  }
}