Pith Number

pith:IZ5B7TI3

pith:2026:IZ5B7TI3THIKZ6VVLJCDBTTLBY

not attested not anchored not stored refs pending

A proof-theoretic approach to abstract interpretation

Alessandra Palmigiano, Apostolos Tzimoulis, Caterina Urban, Vijay D'Silva

arxiv:2605.26591 v1 · 2026-05-26 · cs.LO · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IZ5B7TI3THIKZ6VVLJCDBTTLBY}

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	2026-05-27T01:06:01.075277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

467a1fcd1b99d0acfab55a4430ce6b0e2e224aa7572ae9c24eb4009bac0db9c3

Aliases

arxiv: 2605.26591 · arxiv_version: 2605.26591v1 · doi: 10.48550/arxiv.2605.26591 · pith_short_12: IZ5B7TI3THIK · pith_short_16: IZ5B7TI3THIKZ6VV · pith_short_8: IZ5B7TI3

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/IZ5B7TI3THIKZ6VVLJCDBTTLBY \
  | 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: 467a1fcd1b99d0acfab55a4430ce6b0e2e224aa7572ae9c24eb4009bac0db9c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d04cd02226be55189f02b3812a12d4ff32fc77c834e14a716bb9db876413212c",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2026-05-26T06:23:07Z",
    "title_canon_sha256": "391c0f3d7d06a12c15483830706d1bb2760a83c540ed73206a7b9d3b201be634"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.26591",
    "kind": "arxiv",
    "version": 1
  }
}