Pith Number

pith:TRVSE57P

pith:2026:TRVSE57PKR3QPL54BIY7A2LGCE

not attested not anchored not stored refs pending

Fifty Years of Specification Completeness: What Aviation Certification Tells AI Governance About Epoch Limits, Proof Surfaces, and the Structural Gap

Christo Zietsman

arxiv:2606.25120 v1 · 2026-06-23 · cs.SE · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TRVSE57PKR3QPL54BIY7A2LGCE}

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	2026-06-25T00:18:18.606778Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c6b2277ef547707afbc0a31f069661116f78ae3fcdb7e35b284ddd49ee16598

Aliases

arxiv: 2606.25120 · arxiv_version: 2606.25120v1 · doi: 10.48550/arxiv.2606.25120 · pith_short_12: TRVSE57PKR3Q · pith_short_16: TRVSE57PKR3QPL54 · pith_short_8: TRVSE57P

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/TRVSE57PKR3QPL54BIY7A2LGCE \
  | 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: 9c6b2277ef547707afbc0a31f069661116f78ae3fcdb7e35b284ddd49ee16598

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d0e1390f900dda3b8769f8c3d5ad46652b65ad2ccbbc0c25466a1ce0bbaa82a",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2026-06-23T19:51:13Z",
    "title_canon_sha256": "bd0d8e32267b75ea1126ca5921c6611b54b4dc2bceaf1690987a02997b298d8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.25120",
    "kind": "arxiv",
    "version": 1
  }
}