Pith Number

pith:PXJCFBF5

pith:2026:PXJCFBF537W3EPFZDDZBGLOCD4

not attested not anchored not stored refs pending

The Cognitive Kardashev Scale: Quantifying the Material Envelope of Civilisational Computation

Sachin Sharma

arxiv:2605.22840 v1 · 2026-05-11 · physics.soc-ph · cs.AI · 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{PXJCFBF537W3EPFZDDZBGLOCD4}

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	2026-05-25T00:00:58.691765Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7dd22284bddfedb23cb918f2132dc21f0ea95c6f4787b2de82432da101d3a43f

Aliases

arxiv: 2605.22840 · arxiv_version: 2605.22840v1 · doi: 10.48550/arxiv.2605.22840 · pith_short_12: PXJCFBF537W3 · pith_short_16: PXJCFBF537W3EPFZ · pith_short_8: PXJCFBF5

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/PXJCFBF537W3EPFZDDZBGLOCD4 \
  | 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: 7dd22284bddfedb23cb918f2132dc21f0ea95c6f4787b2de82432da101d3a43f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3668716d00cc97a5cde9ad5b9fb0e10afb3a65a9617d64786fe9e6f6239a3b69",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CY"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2026-05-11T02:43:06Z",
    "title_canon_sha256": "078dd77fc111448fe2b0e27b7a190202537021c0adf942357c393bd385c8c3d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.22840",
    "kind": "arxiv",
    "version": 1
  }
}