Pith Number

pith:JUQJYVLZ

pith:2017:JUQJYVLZQM74DS4EJCY6A73MKW

not attested not anchored not stored refs pending

An Empirical Comparison of Developer Retention in the RubyGems and npm Software Ecosystems

Eleni Constantinou, Tom Mens

arxiv:1708.02618 v1 · 2017-08-08 · 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{JUQJYVLZQM74DS4EJCY6A73MKW}

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	2026-05-18T00:32:59.448909Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d209c5579833fc1cb8448b1e07f6c5592965369a2fb6d5b256d566273ad261b

Aliases

arxiv: 1708.02618 · arxiv_version: 1708.02618v1 · doi: 10.48550/arxiv.1708.02618 · pith_short_12: JUQJYVLZQM74 · pith_short_16: JUQJYVLZQM74DS4E · pith_short_8: JUQJYVLZ

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/JUQJYVLZQM74DS4EJCY6A73MKW \
  | 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: 4d209c5579833fc1cb8448b1e07f6c5592965369a2fb6d5b256d566273ad261b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0627873803dc0b54ce8d5ecd744d50b81ca72cc61285fa140e3ca8ad210c6dab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2017-08-08T19:34:24Z",
    "title_canon_sha256": "29ecbdcac6713ffcbb5f4ec87f83bf937e722f07f15a633c9123a234d4855f61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.02618",
    "kind": "arxiv",
    "version": 1
  }
}