Pith Number

pith:6NSXI5EQ

pith:2026:6NSXI5EQ4DB6LXKM4TTCOGVZTK

not attested not anchored not stored refs resolved

Jean-Raymond Abrial: A Scientific Biography of a Formal Methods Pioneer

Henri Habrias, Jonathan P. Bowen

Jean-Raymond Abrial created Z notation, the B-Method, and Event-B to enable formal specification, refinement, and proof for large industrial systems.

arxiv:2604.07353 v1 · 2026-03-20 · cs.GL · cs.CY · cs.LO · cs.SE

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\pithnumber{6NSXI5EQ4DB6LXKM4TTCOGVZTK}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

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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.

Claims

C1strongest claim

Abrial has played a decisive role in the creation of the Z specification notation, the B-Method, and Event-B, and in demonstrating their applicability to large-scale industrial systems.

C2weakest assumption

The biographical narrative rests on the authors' selection and interpretation of historical sources being accurate and representative of Abrial's contributions.

C3one line summary

A biographical account of Jean-Raymond Abrial's role in developing formal specification languages and proof-based methods for software engineering.

References

26 extracted · 26 resolved · 1 Pith anchors

[1] Academia Europaea, The Academy of Europe, 2006 [Online] 2006

[2] The French popula- tion census for 1990 1990 · doi:10.1007/3-540-60271-

[3] Available: https://jean- raymond-abrial.blogspot.com

[4] The Z Notation: Whence the Cause and Whither the Course?

[5] doi:10.1007/978-3-319-29628-9_3 · doi:10.1007/978-3-319-29628-9_3

Receipt and verification

First computed	2026-06-12T01:09:27.473746Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f365747490e0c3e5dd4ce4e6271ab99a9f34cc0e9656b4b00e8cfe520ec7721f

Aliases

arxiv: 2604.07353 · arxiv_version: 2604.07353v1 · doi: 10.48550/arxiv.2604.07353 · pith_short_12: 6NSXI5EQ4DB6 · pith_short_16: 6NSXI5EQ4DB6LXKM · pith_short_8: 6NSXI5EQ

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/6NSXI5EQ4DB6LXKM4TTCOGVZTK \
  | 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: f365747490e0c3e5dd4ce4e6271ab99a9f34cc0e9656b4b00e8cfe520ec7721f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4572dd8adf4c14e5d2bb567e8e72a93a126c3b0f0827174f821b112431695003",
    "cross_cats_sorted": [
      "cs.CY",
      "cs.LO",
      "cs.SE"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.GL",
    "submitted_at": "2026-03-20T12:04:11Z",
    "title_canon_sha256": "5547bc86f3eebe75e00815b222fd87bc40ba25fbbd8eb838272559034071e3d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.07353",
    "kind": "arxiv",
    "version": 1
  }
}