Pith Number

pith:4WWHOXBC

pith:2021:4WWHOXBCSBGHM5OEVI7NGHZKOV

not attested not anchored not stored refs pending

Building the Collaboration Graph of Open-Source Software Ecosystem

Elena Lyulina, Mahmoud Jahanshahi

arxiv:2103.12168 v1 · 2021-03-22 · cs.SE · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4WWHOXBCSBGHM5OEVI7NGHZKOV}

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	2026-07-05T03:46:57.769858Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5ac775c22904c7675c4aa3ed31f2a75421aea41c3ac90f8e771fd832393d657

Aliases

arxiv: 2103.12168 · arxiv_version: 2103.12168v1 · doi: 10.48550/arxiv.2103.12168 · pith_short_12: 4WWHOXBCSBGH · pith_short_16: 4WWHOXBCSBGHM5OE · pith_short_8: 4WWHOXBC

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/4WWHOXBCSBGHM5OEVI7NGHZKOV \
  | 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: e5ac775c22904c7675c4aa3ed31f2a75421aea41c3ac90f8e771fd832393d657

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af9b354610f6a6c5d6712d8f845a020c2db8f96579d45506499628666c10d7da",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2021-03-22T20:34:04Z",
    "title_canon_sha256": "1097f19110267c261c86e5160f3c0630497d4bbb1099972159d9b488802ea94d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.12168",
    "kind": "arxiv",
    "version": 1
  }
}