Pith Number

pith:DQWRDNRF

pith:2026:DQWRDNRFBIY63JDJ2TWBKJRSPQ

not attested not anchored not stored refs pending

Quantalic lambda-calculus and additive disjunction

Bruna Salgado, Renato Neves

arxiv:2608.06120 v1 · 2026-08-06 · 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{DQWRDNRFBIY63JDJ2TWBKJRSPQ}

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	2026-08-07T01:40:35.121535Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c2d11b6250a31eda469d4ec1526327c277fe52237135a994a5e02637479120b

Aliases

arxiv: 2608.06120 · arxiv_version: 2608.06120v1 · doi: 10.48550/arxiv.2608.06120 · pith_short_12: DQWRDNRFBIY6 · pith_short_16: DQWRDNRFBIY63JDJ · pith_short_8: DQWRDNRF

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/DQWRDNRFBIY63JDJ2TWBKJRSPQ \
  | 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: 1c2d11b6250a31eda469d4ec1526327c277fe52237135a994a5e02637479120b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4834fb900be3d4ba99ead83091eb136939d3f53c910f43178fd25dd87a21f46",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2026-08-06T14:51:20Z",
    "title_canon_sha256": "c6005cee5e1eed869fed3760c61efc353a0b427106795631a7fdba01cbcbd3bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.06120",
    "kind": "arxiv",
    "version": 1
  }
}