Pith Number

pith:ELT6P2CN

pith:2019:ELT6P2CNTYXAD7C77GM6LAA543

not attested not anchored not stored refs pending

On the abandonment and survival of open source projects: An empirical investigation

Alexander Serebrenik, Eleni Constantinou, Guilherme Avelino, Marco Tulio Valente

arxiv:1906.08058 v1 · 2019-06-19 · 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{ELT6P2CNTYXAD7C77GM6LAA543}

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	2026-05-17T23:42:54.719174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22e7e7e84d9e2e01fc5ff999e5801de6f393da4cf0b7c2ddbf5f15aa238af3f8

Aliases

arxiv: 1906.08058 · arxiv_version: 1906.08058v1 · doi: 10.48550/arxiv.1906.08058 · pith_short_12: ELT6P2CNTYXA · pith_short_16: ELT6P2CNTYXAD7C7 · pith_short_8: ELT6P2CN

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/ELT6P2CNTYXAD7C77GM6LAA543 \
  | 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: 22e7e7e84d9e2e01fc5ff999e5801de6f393da4cf0b7c2ddbf5f15aa238af3f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a74670766f7c678e2d1285fb6f3166334575a27c1181d58a0b15652965fb5003",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-06-19T12:22:08Z",
    "title_canon_sha256": "e3b8dc3a186882765c53407c4a557df61630892031c7498c1eff48febb204364"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.08058",
    "kind": "arxiv",
    "version": 1
  }
}