Pith Number

pith:IKUVW72K

pith:2019:IKUVW72KQ7ZAFGDVZHAXB4YL4Y

not attested not anchored not stored refs pending

Factoring Derivation Spaces via Intersection Types (Extended Version)

Gonzalo Ciruelos, Pablo Barenbaum

arxiv:1907.08820 v1 · 2019-07-20 · cs.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{IKUVW72KQ7ZAFGDVZHAXB4YL4Y}

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	2026-05-17T23:40:05.260959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42a95b7f4a87f2029875c9c170f30be60da8465375f81d435afac455146ce61d

Aliases

arxiv: 1907.08820 · arxiv_version: 1907.08820v1 · doi: 10.48550/arxiv.1907.08820 · pith_short_12: IKUVW72KQ7ZA · pith_short_16: IKUVW72KQ7ZAFGDV · pith_short_8: IKUVW72K

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/IKUVW72KQ7ZAFGDVZHAXB4YL4Y \
  | 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: 42a95b7f4a87f2029875c9c170f30be60da8465375f81d435afac455146ce61d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f1848d1fab7e662b40da5fbe91026bd2721fa01b890ea24b676edc273019698",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2019-07-20T14:57:40Z",
    "title_canon_sha256": "f7639333b502fa4ab6367763ad7e16ec64b785b9d9bef649a3cb1ac9859cbd02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.08820",
    "kind": "arxiv",
    "version": 1
  }
}