Pith Number

pith:ZII3CLM7

pith:2025:ZII3CLM7OXSRGG6OZYOMIVQ56O

not attested not anchored not stored refs pending

Substructural Abstract Syntax with Variable Binding and Single-Variable Substitution

Marcelo Fiore, Sanjiv Ranchod

arxiv:2505.24812 v1 · 2025-05-30 · cs.LO · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZII3CLM7OXSRGG6OZYOMIVQ56O}

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	2026-07-05T11:12:57.159515Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca11b12d9f75e5131bcece1cc4561df3934eb99bea97dc05237da178378a94f2

Aliases

arxiv: 2505.24812 · arxiv_version: 2505.24812v1 · doi: 10.48550/arxiv.2505.24812 · pith_short_12: ZII3CLM7OXSR · pith_short_16: ZII3CLM7OXSRGG6O · pith_short_8: ZII3CLM7

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/ZII3CLM7OXSRGG6OZYOMIVQ56O \
  | 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: ca11b12d9f75e5131bcece1cc4561df3934eb99bea97dc05237da178378a94f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46822c2d904dd1a3e488bb1403b1d794b939ecb1912fc09a5a8e98a8f60e3bcf",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2025-05-30T17:16:53Z",
    "title_canon_sha256": "c449cbb3115e100d7e7cc609fbf4d88fe3b181fe686fbce470599e70d55e9f96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.24812",
    "kind": "arxiv",
    "version": 1
  }
}