Pith Number

pith:FOYSTJKO

pith:2018:FOYSTJKOBSQ4DDU5NHUPOJNQIK

not attested not anchored not stored refs pending

The Essence Theory of Software Engineering - Large-Scale Classroom Experiences from 450+ Software Engineering BSc Students

Anh Nguyen-Duc, Juhanki Risku, Kai-Kristian Kemell, Pekka Abrahamsson, Xiaofeng Wang

arxiv:1809.08827 v1 · 2018-09-24 · 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{FOYSTJKOBSQ4DDU5NHUPOJNQIK}

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	2026-05-18T00:05:03.433961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bb129a54e0ca1c18e9d69e8f725b042bfdb92547a35b737f83ce942d571bb49

Aliases

arxiv: 1809.08827 · arxiv_version: 1809.08827v1 · doi: 10.48550/arxiv.1809.08827 · pith_short_12: FOYSTJKOBSQ4 · pith_short_16: FOYSTJKOBSQ4DDU5 · pith_short_8: FOYSTJKO

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/FOYSTJKOBSQ4DDU5NHUPOJNQIK \
  | 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: 2bb129a54e0ca1c18e9d69e8f725b042bfdb92547a35b737f83ce942d571bb49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a283a96ce30d311937c6647a34b223cc24048258890b9bf25c9d63972dbf0004",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-09-24T10:11:32Z",
    "title_canon_sha256": "47cc9b885a81278268fa96ba5e88a6222ab079a0c57ccaad91b9cd90e0595d11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08827",
    "kind": "arxiv",
    "version": 1
  }
}