Pith Number

pith:ALC5AZ4E

pith:2026:ALC5AZ4EHCK7KHFU7VZ6JYSYRM

not attested not anchored not stored refs pending

Thermodynamic Limits of Physical Intelligence

Koichi Takahashi, Yusuke Hayashi

arxiv:2602.05463 v2 · 2026-02-05 · cs.LG · cs.AI · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ALC5AZ4EHCK7KHFU7VZ6JYSYRM}

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.

Cited by

1 paper in Pith

Thermodynamics of Learning: A Typed Four-Component Accounting of Memory, Fit, and Value

Receipt and verification

First computed	2026-07-21T01:21:42.919423Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02c5d067843895f51cb4fd73e4e2588b28ff7e957f119e8d5c6d47d8e2130ed8

Aliases

arxiv: 2602.05463 · arxiv_version: 2602.05463v2 · doi: 10.48550/arxiv.2602.05463 · pith_short_12: ALC5AZ4EHCK7 · pith_short_16: ALC5AZ4EHCK7KHFU · pith_short_8: ALC5AZ4E

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/ALC5AZ4EHCK7KHFU7VZ6JYSYRM \
  | 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: 02c5d067843895f51cb4fd73e4e2588b28ff7e957f119e8d5c6d47d8e2130ed8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8337e6238ff5e398b09b6195b085d469b2e507ceb1ef58fd1d092c546b5df2be",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-02-05T09:12:43Z",
    "title_canon_sha256": "641b22e897361f73fddd548757c6f0c20417eb29d1bb46c98fb9336dec66ce7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.05463",
    "kind": "arxiv",
    "version": 2
  }
}