Pith Number

pith:NPD75GUC

pith:2015:NPD75GUCC4YXAANK5Q2NCXJCW3

not attested not anchored not stored refs pending

Understanding the Affect of Developers: Theoretical Background and Guidelines for Psychoempirical Software Engineering

Daniel Graziotin, Pekka Abrahamsson, Xiaofeng Wang

arxiv:1507.03767 v2 · 2015-07-14 · cs.SE · cs.HC

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NPD75GUCC4YXAANK5Q2NCXJCW3}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:32:50.181161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bc7fe9a8217317001aaec34d15d22b6d17359c63ccb77fd99028db4d1290294

Aliases

arxiv: 1507.03767 · arxiv_version: 1507.03767v2 · doi: 10.48550/arxiv.1507.03767 · pith_short_12: NPD75GUCC4YX · pith_short_16: NPD75GUCC4YXAANK · pith_short_8: NPD75GUC

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/NPD75GUCC4YXAANK5Q2NCXJCW3 \
  | 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: 6bc7fe9a8217317001aaec34d15d22b6d17359c63ccb77fd99028db4d1290294

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "501f327bccc6c4e73b68c4e2290557be3469efeec9373f1ab51697d8beb32a8d",
    "cross_cats_sorted": [
      "cs.HC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2015-07-14T08:44:54Z",
    "title_canon_sha256": "c7997fbe1fb05c2025a636e97763ccf619b9a760391dd11bd8433aa80a8224bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.03767",
    "kind": "arxiv",
    "version": 2
  }
}