Pith Number

pith:T2P6I2HH

pith:2026:T2P6I2HHJLL7ZHKL63TIRMAY53

not attested not anchored not stored refs pending

Not Your Usual Type(s): Data contracts as types across languages and engines

Aldrin Montana, Colin Marc, Jacopo Tagliabue, Luca Bigon

arxiv:2607.13339 v1 · 2026-07-14 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T2P6I2HHJLL7ZHKL63TIRMAY53}

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	2026-07-16T00:22:13.112332Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e9fe468e74ad7fc9d4bf6e688b018eee95d939134daff0b1b03bf90ff49b392

Aliases

arxiv: 2607.13339 · arxiv_version: 2607.13339v1 · doi: 10.48550/arxiv.2607.13339 · pith_short_12: T2P6I2HHJLL7 · pith_short_16: T2P6I2HHJLL7ZHKL · pith_short_8: T2P6I2HH

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/T2P6I2HHJLL7ZHKL63TIRMAY53 \
  | 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: 9e9fe468e74ad7fc9d4bf6e688b018eee95d939134daff0b1b03bf90ff49b392

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "852678047910742f60e26c0814d89758a81464802a07b89704237ef6dab7f05a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2026-07-14T23:55:40Z",
    "title_canon_sha256": "5cef68c71ba67539a94b0a57b1416eaa0b9219c21471714fee4279558255fe9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.13339",
    "kind": "arxiv",
    "version": 1
  }
}