Pith Number

pith:PVCI7X6J

pith:2016:PVCI7X6J6LAFSXYXUVPC5RAFDS

not attested not anchored not stored refs pending

Desiree - a Refinement Calculus for Requirements Engineering

Feng-Lin Li, John Mylopoulos

arxiv:1604.03184 v1 · 2016-04-12 · 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{PVCI7X6J6LAFSXYXUVPC5RAFDS}

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	2026-05-18T01:17:16.221744Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d448fdfc9f2c0595f17a55e2ec4051c9c8c3a18d4d7e255b7f49e757fb3de58

Aliases

arxiv: 1604.03184 · arxiv_version: 1604.03184v1 · doi: 10.48550/arxiv.1604.03184 · pith_short_12: PVCI7X6J6LAF · pith_short_16: PVCI7X6J6LAFSXYX · pith_short_8: PVCI7X6J

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/PVCI7X6J6LAFSXYXUVPC5RAFDS \
  | 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: 7d448fdfc9f2c0595f17a55e2ec4051c9c8c3a18d4d7e255b7f49e757fb3de58

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06b0242c91a8c6f15d3b7e76c1cfd795e0889861aecc2c77e823bc8b1cd968b8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2016-04-12T00:32:53Z",
    "title_canon_sha256": "c9e38a4ea47f2440f39f8cefbb002b9bf0f3fd641c3a831c65c89ae68b4201b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.03184",
    "kind": "arxiv",
    "version": 1
  }
}