Pith Number

pith:UZLIEIUB

pith:2026:UZLIEIUB5252E6XWMUZ3PHM3EV

not attested not anchored not stored refs pending

The Spec Growth Engine: Spec-Anchored, Code-Coupled, Drift-Enforced Architecture for AI-Assisted Software Development

Hartwig Grabowski

arxiv:2606.27045 v1 · 2026-06-25 · cs.SE · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UZLIEIUB5252E6XWMUZ3PHM3EV}

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	2026-06-26T01:16:07.956617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a656822281eebba27af66533b79d9b2572d92aae09bf0864bf542e83640271be

Aliases

arxiv: 2606.27045 · arxiv_version: 2606.27045v1 · doi: 10.48550/arxiv.2606.27045 · pith_short_12: UZLIEIUB5252 · pith_short_16: UZLIEIUB5252E6XW · pith_short_8: UZLIEIUB

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/UZLIEIUB5252E6XWMUZ3PHM3EV \
  | 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: a656822281eebba27af66533b79d9b2572d92aae09bf0864bf542e83640271be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd7870b5856174e051ce90576914886dd016bc2bd9d3ee1acf70b4ce2a6d08ff",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2026-06-25T13:51:22Z",
    "title_canon_sha256": "96808dec6230bd0f606277fb65203cb1f4f00a547ca7f5ab96b13665688cbeb6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.27045",
    "kind": "arxiv",
    "version": 1
  }
}