Pith Number

pith:NWCQATEX

pith:2014:NWCQATEX4PZAGAJPATMRDBSWOF

not attested not anchored not stored refs pending

Lessons Learned and Results from Applying Data-Driven Cost Estimation to Industrial Data Sets

Adam Trendowicz, Jens Heidrich, J\"urgen M\"unch, Kenji Yokoyama, Nahomi Kikuchi, T. Kawaguchi, Yasushi Ishigai

arxiv:1401.4256 v1 · 2014-01-17 · 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{NWCQATEX4PZAGAJPATMRDBSWOF}

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	2026-05-18T03:01:55.571216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d85004c97e3f203012f04d9118656714cfbb7fecb32219959b64de27328536e

Aliases

arxiv: 1401.4256 · arxiv_version: 1401.4256v1 · doi: 10.48550/arxiv.1401.4256 · pith_short_12: NWCQATEX4PZA · pith_short_16: NWCQATEX4PZAGAJP · pith_short_8: NWCQATEX

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/NWCQATEX4PZAGAJPATMRDBSWOF \
  | 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: 6d85004c97e3f203012f04d9118656714cfbb7fecb32219959b64de27328536e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "501720c4485ab2b82c0fadae445f1c944787444788887b36c8b25e54d6a42169",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2014-01-17T07:13:37Z",
    "title_canon_sha256": "44d9be70af00d9218bfa3743d6482390fa93d2b09f7527e5f70e3a65721a5bc5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.4256",
    "kind": "arxiv",
    "version": 1
  }
}