Pith Number

pith:FNQXMJPY

pith:2017:FNQXMJPYNLYD6DTWLGER3A76LZ

not attested not anchored not stored refs pending

A Prediction Model of the Project Life-span in Open Source Software Ecosystem

Benhong Zhao, Dayu He, Haozhi Jin, Jinsong Wu, Liu Yang, Shengzong Liu, Yan Zhang, Zhifang Liao

arxiv:1710.11540 v1 · 2017-10-31 · 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{FNQXMJPYNLYD6DTWLGER3A76LZ}

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	2026-05-18T00:31:37.032273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b617625f86af03f0e7659891d83fe5e7aeb864250a302fb6223133e834f3e83

Aliases

arxiv: 1710.11540 · arxiv_version: 1710.11540v1 · doi: 10.48550/arxiv.1710.11540 · pith_short_12: FNQXMJPYNLYD · pith_short_16: FNQXMJPYNLYD6DTW · pith_short_8: FNQXMJPY

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/FNQXMJPYNLYD6DTWLGER3A76LZ \
  | 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: 2b617625f86af03f0e7659891d83fe5e7aeb864250a302fb6223133e834f3e83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79bb130aad7ff97e6bddd402ad4e00d32b4b74904448d1c2bbe96a7af5a44288",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2017-10-31T15:53:21Z",
    "title_canon_sha256": "356441d5a472b6d71d4847f9086bcd8442011fd0652c0a81ed509b9881df6dea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.11540",
    "kind": "arxiv",
    "version": 1
  }
}