Pith Number

pith:VEHMMDLK

pith:2021:VEHMMDLKTF2VXEK52NX6KL4KQ4

not attested not anchored not stored refs pending

Applying Model-based Requirements Engineering in Three Large European Collaborative Projects: An Experience Report

Andrey Sadovykh, Dragos Truscan, Hugo Bruneliere

arxiv:2105.03119 v1 · 2021-05-07 · 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{VEHMMDLKTF2VXEK52NX6KL4KQ4}

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	2026-07-05T02:38:21.861828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a90ec60d6a99755b915dd36fe52f8a87395a9872cc9ef8b1899ae10e0a06ed36

Aliases

arxiv: 2105.03119 · arxiv_version: 2105.03119v1 · doi: 10.48550/arxiv.2105.03119 · pith_short_12: VEHMMDLKTF2V · pith_short_16: VEHMMDLKTF2VXEK5 · pith_short_8: VEHMMDLK

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/VEHMMDLKTF2VXEK52NX6KL4KQ4 \
  | 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: a90ec60d6a99755b915dd36fe52f8a87395a9872cc9ef8b1899ae10e0a06ed36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8600f01a41946a52601031ccb05dbf1d0690dabb087864d91f016fc754fa8bdc",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2021-05-07T08:47:25Z",
    "title_canon_sha256": "a6b606beb3ab99058a2579f4005b9756fa2b1ef7092aead7e7537532ca771040"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.03119",
    "kind": "arxiv",
    "version": 1
  }
}