Pith Number

pith:FMFCEPLP

pith:2014:FMFCEPLPUPIEFDS45Q7D5SZJGZ

not attested not anchored not stored refs pending

State of the Practice in Software Effort Estimation: A Survey and Literature Review

Adam Trendowicz, J\"urgen M\"unch, Ross Jeffery

arxiv:1401.5878 v1 · 2014-01-23 · 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{FMFCEPLPUPIEFDS45Q7D5SZJGZ}

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	2026-05-18T03:01:23.513703Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b0a223d6fa3d0428e5cec3e3ecb293650a3469ee154ba5aedd51ffefc9abd2f

Aliases

arxiv: 1401.5878 · arxiv_version: 1401.5878v1 · doi: 10.48550/arxiv.1401.5878 · pith_short_12: FMFCEPLPUPIE · pith_short_16: FMFCEPLPUPIEFDS4 · pith_short_8: FMFCEPLP

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/FMFCEPLPUPIEFDS45Q7D5SZJGZ \
  | 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: 2b0a223d6fa3d0428e5cec3e3ecb293650a3469ee154ba5aedd51ffefc9abd2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5675f25989d9c3b10e5bf7da91a7cfbe03ca0746e07922743e75653a10788556",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2014-01-23T06:42:05Z",
    "title_canon_sha256": "e0eca1da078b1ba6de2c0ca6b5ad795acff23862b38c7432d09975004f9aa450"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.5878",
    "kind": "arxiv",
    "version": 1
  }
}