Pith Number

pith:CE3DQPXY

pith:2026:CE3DQPXYDHVEYORB5D4EH2WZL6

not attested not anchored not stored refs pending

Canonical Functionalism: Defining Functional Structure without Observer-Relative Semantic Maps

Ryota Kanai, Shuqin Ma

arxiv:2605.21506 v1 · 2026-05-09 · q-bio.NC · cs.NE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CE3DQPXYDHVEYORB5D4EH2WZL6}

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	2026-05-22T00:02:27.204373Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1136383ef819ea4c3a21e8f843ead95fa73a4975dc41d6bdb849eed208137285

Aliases

arxiv: 2605.21506 · arxiv_version: 2605.21506v1 · doi: 10.48550/arxiv.2605.21506 · pith_short_12: CE3DQPXYDHVE · pith_short_16: CE3DQPXYDHVEYORB · pith_short_8: CE3DQPXY

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/CE3DQPXYDHVEYORB5D4EH2WZL6 \
  | 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: 1136383ef819ea4c3a21e8f843ead95fa73a4975dc41d6bdb849eed208137285

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c62d020f5cd5026b47459f994a8f63aa6d6b6ec6f81238e0e7cd34e8b6695be",
    "cross_cats_sorted": [
      "cs.NE"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "q-bio.NC",
    "submitted_at": "2026-05-09T11:08:40Z",
    "title_canon_sha256": "fa09eff5f5ed8054a6cf59bbbcd64970afa3a6262b4718335e53e5e4522a8c5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21506",
    "kind": "arxiv",
    "version": 1
  }
}